forked from luck/tmp_suning_uos_patched
mtd: cmdlinepart: minor cleanups
Clean-up the driver a bit to make it easier to read and amend the coding style.
Mostly these are changes like:
if (a)
{
}
=>
if (a) {
}
Some extra blank lines were added.
Indentation was changed to use tabs instead of spaces.
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
This commit is contained in:
Artem Bityutskiy
David Woodhouse
parent
9e0606fc4e
commit
fac0077cc0
@ -82,15 +82,14 @@ static int cmdline_parsed;
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* syntax has been verified ok.
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*/
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static struct mtd_partition * newpart(char *s,
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char **retptr,
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int *num_parts,
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int this_part,
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unsigned char **extra_mem_ptr,
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int extra_mem_size)
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char **retptr,
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int *num_parts,
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int this_part,
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unsigned char **extra_mem_ptr,
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int extra_mem_size)
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{
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struct mtd_partition *parts;
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unsigned long size;
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unsigned long offset = OFFSET_CONTINUOUS;
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unsigned long size, offset = OFFSET_CONTINUOUS;
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char *name;
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int name_len;
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unsigned char *extra_mem;
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@ -98,16 +97,13 @@ static struct mtd_partition * newpart(char *s,
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unsigned int mask_flags;
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/* fetch the partition size */
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if (*s == '-')
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{ /* assign all remaining space to this partition */
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if (*s == '-') {
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/* assign all remaining space to this partition */
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size = SIZE_REMAINING;
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s++;
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}
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else
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{
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} else {
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size = memparse(s, &s);
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if (size < PAGE_SIZE)
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{
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if (size < PAGE_SIZE) {
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printk(KERN_ERR ERRP "partition size too small (%lx)\n", size);
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return ERR_PTR(-EINVAL);
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}
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@ -116,60 +112,51 @@ static struct mtd_partition * newpart(char *s,
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/* fetch partition name and flags */
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mask_flags = 0; /* this is going to be a regular partition */
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delim = 0;
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/* check for offset */
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if (*s == '@')
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{
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s++;
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offset = memparse(s, &s);
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}
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/* now look for name */
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if (*s == '(')
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{
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delim = ')';
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/* check for offset */
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if (*s == '@') {
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s++;
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offset = memparse(s, &s);
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}
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if (delim)
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{
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/* now look for name */
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if (*s == '(')
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delim = ')';
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if (delim) {
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char *p;
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name = ++s;
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name = ++s;
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p = strchr(name, delim);
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if (!p)
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{
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if (!p) {
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printk(KERN_ERR ERRP "no closing %c found in partition name\n", delim);
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return ERR_PTR(-EINVAL);
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}
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name_len = p - name;
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s = p + 1;
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}
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else
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{
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name = NULL;
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} else {
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name = NULL;
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name_len = 13; /* Partition_000 */
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}
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/* record name length for memory allocation later */
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extra_mem_size += name_len + 1;
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/* test for options */
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if (strncmp(s, "ro", 2) == 0)
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{
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/* test for options */
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if (strncmp(s, "ro", 2) == 0) {
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mask_flags |= MTD_WRITEABLE;
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s += 2;
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}
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}
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/* if lk is found do NOT unlock the MTD partition*/
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if (strncmp(s, "lk", 2) == 0)
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{
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/* if lk is found do NOT unlock the MTD partition*/
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if (strncmp(s, "lk", 2) == 0) {
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mask_flags |= MTD_POWERUP_LOCK;
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s += 2;
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}
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}
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/* test if more partitions are following */
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if (*s == ',')
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{
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if (size == SIZE_REMAINING)
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{
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if (*s == ',') {
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if (size == SIZE_REMAINING) {
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printk(KERN_ERR ERRP "no partitions allowed after a fill-up partition\n");
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return ERR_PTR(-EINVAL);
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}
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@ -178,44 +165,38 @@ static struct mtd_partition * newpart(char *s,
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&extra_mem, extra_mem_size);
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if (IS_ERR(parts))
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return parts;
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}
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else
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{ /* this is the last partition: allocate space for all */
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} else {
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/* this is the last partition: allocate space for all */
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int alloc_size;
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*num_parts = this_part + 1;
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alloc_size = *num_parts * sizeof(struct mtd_partition) +
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extra_mem_size;
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parts = kzalloc(alloc_size, GFP_KERNEL);
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if (!parts)
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return ERR_PTR(-ENOMEM);
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extra_mem = (unsigned char *)(parts + *num_parts);
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}
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/* enter this partition (offset will be calculated later if it is zero at this point) */
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parts[this_part].size = size;
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parts[this_part].offset = offset;
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parts[this_part].mask_flags = mask_flags;
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if (name)
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{
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strlcpy(extra_mem, name, name_len + 1);
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}
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else
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{
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sprintf(extra_mem, "Partition_%03d", this_part);
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}
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parts[this_part].name = extra_mem;
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extra_mem += name_len + 1;
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dbg(("partition %d: name <%s>, offset %llx, size %llx, mask flags %x\n",
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this_part,
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parts[this_part].name,
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parts[this_part].offset,
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parts[this_part].size,
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parts[this_part].mask_flags));
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this_part, parts[this_part].name, parts[this_part].offset,
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parts[this_part].size, parts[this_part].mask_flags));
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/* return (updated) pointer to extra_mem memory */
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if (extra_mem_ptr)
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*extra_mem_ptr = extra_mem;
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*extra_mem_ptr = extra_mem;
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/* return (updated) pointer command line string */
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*retptr = s;
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@ -235,14 +216,14 @@ static int mtdpart_setup_real(char *s)
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{
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struct cmdline_mtd_partition *this_mtd;
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struct mtd_partition *parts;
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int mtd_id_len;
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int num_parts;
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int mtd_id_len, num_parts;
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char *p, *mtd_id;
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mtd_id = s;
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mtd_id = s;
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/* fetch <mtd-id> */
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if (!(p = strchr(s, ':')))
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{
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p = strchr(s, ':');
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if (!p) {
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printk(KERN_ERR ERRP "no mtd-id\n");
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return -EINVAL;
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}
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@ -261,8 +242,7 @@ static int mtdpart_setup_real(char *s)
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(unsigned char**)&this_mtd, /* out: extra mem */
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mtd_id_len + 1 + sizeof(*this_mtd) +
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sizeof(void*)-1 /*alignment*/);
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if (IS_ERR(parts))
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{
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if (IS_ERR(parts)) {
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/*
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* An error occurred. We're either:
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* a) out of memory, or
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@ -275,7 +255,7 @@ static int mtdpart_setup_real(char *s)
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/* align this_mtd */
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this_mtd = (struct cmdline_mtd_partition *)
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ALIGN((unsigned long)this_mtd, sizeof(void*));
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ALIGN((unsigned long)this_mtd, sizeof(void *));
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/* enter results */
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this_mtd->parts = parts;
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this_mtd->num_parts = num_parts;
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@ -295,13 +275,13 @@ static int mtdpart_setup_real(char *s)
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break;
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/* does another spec follow? */
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if (*s != ';')
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{
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if (*s != ';') {
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printk(KERN_ERR ERRP "bad character after partition (%c)\n", *s);
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return -EINVAL;
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}
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s++;
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}
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return 0;
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}
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@ -328,20 +308,18 @@ static int parse_cmdline_partitions(struct mtd_info *master,
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return err;
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}
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for(part = partitions; part; part = part->next)
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{
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if ((!mtd_id) || (!strcmp(part->mtd_id, mtd_id)))
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{
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for(i = 0, offset = 0; i < part->num_parts; i++)
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{
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for (part = partitions; part; part = part->next) {
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if ((!mtd_id) || (!strcmp(part->mtd_id, mtd_id))) {
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for (i = 0, offset = 0; i < part->num_parts; i++) {
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if (part->parts[i].offset == OFFSET_CONTINUOUS)
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part->parts[i].offset = offset;
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part->parts[i].offset = offset;
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else
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offset = part->parts[i].offset;
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offset = part->parts[i].offset;
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if (part->parts[i].size == SIZE_REMAINING)
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part->parts[i].size = master->size - offset;
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if (offset + part->parts[i].size > master->size)
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{
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part->parts[i].size = master->size - offset;
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if (offset + part->parts[i].size > master->size) {
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printk(KERN_WARNING ERRP
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"%s: partitioning exceeds flash size, truncating\n",
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part->mtd_id);
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@ -350,14 +328,17 @@ static int parse_cmdline_partitions(struct mtd_info *master,
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}
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offset += part->parts[i].size;
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}
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*pparts = kmemdup(part->parts,
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sizeof(*part->parts) * part->num_parts,
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GFP_KERNEL);
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if (!*pparts)
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return -ENOMEM;
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return part->num_parts;
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}
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}
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return 0;
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}
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