AcoSail/kernel_optimize_test
8
0
Fork 0
forked from luck/tmp_suning_uos_patched
Code Pull Requests Activity

parport: use kmemdup instead of kmalloc + memcpy

Browse Source 
This replaces calls to kmalloc followed by memcpy with a single call to
kmemdup. This was found via make coccicheck.

Signed-off-by: Silviu-Mihai Popescu <silviupopescu1990@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Silviu-Mihai Popescu 2013-03-11 18:39:22 +02:00 committed by Greg Kroah-Hartman
parent 5bcdf0ce2b
commit 2451a84839
3 changed files with 6 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
drivers/parport/parport_gsc.c
View File

@ -246,14 +246,14 @@ struct parport *parport_gsc_probe_port(unsigned long base,
printk (KERN_DEBUG "parport (0x%lx): no memory!\n", base);
return NULL;
}
ops = kmalloc (sizeof (struct parport_operations), GFP_KERNEL);
ops = kmemdup(&parport_gsc_ops, sizeof(struct parport_operations),
GFP_KERNEL);
if (!ops) {
printk (KERN_DEBUG "parport (0x%lx): no memory for ops!\n",
base);
kfree (priv);
return NULL;
}
memcpy (ops, &parport_gsc_ops, sizeof (struct parport_operations));
priv->ctr = 0xc;
priv->ctr_writable = 0xff;
priv->dma_buf = 0;

5
drivers/parport/parport_sunbpp.c
View File

@ -284,12 +284,11 @@ static int bpp_probe(struct platform_device *op)
size = resource_size(&op->resource[0]);
dma = PARPORT_DMA_NONE;
ops = kmalloc(sizeof(struct parport_operations), GFP_KERNEL);
ops = kmemdup(&parport_sunbpp_ops, sizeof(struct parport_operations),
GFP_KERNEL);
if (!ops)
goto out_unmap;
memcpy (ops, &parport_sunbpp_ops, sizeof(struct parport_operations));
dprintk(("register_port\n"));
if (!(p = parport_register_port((unsigned long)base, irq, dma, ops)))
goto out_free_ops;

6
drivers/parport/procfs.c
View File

@ -476,10 +476,9 @@ int parport_proc_register(struct parport *port)
struct parport_sysctl_table *t;
int i;
t = kmalloc(sizeof(*t), GFP_KERNEL);
t = kmemdup(&parport_sysctl_template, sizeof(*t), GFP_KERNEL);
if (t == NULL)
return -ENOMEM;
memcpy(t, &parport_sysctl_template, sizeof(*t));
t->device_dir[0].extra1 = port;
@ -523,10 +522,9 @@ int parport_device_proc_register(struct pardevice *device)
struct parport_device_sysctl_table *t;
struct parport * port = device->port;
t = kmalloc(sizeof(*t), GFP_KERNEL);
t = kmemdup(&parport_device_sysctl_template, sizeof(*t), GFP_KERNEL);
if (t == NULL)
return -ENOMEM;
memcpy(t, &parport_device_sysctl_template, sizeof(*t));
t->dev_dir[0].child = t->parport_dir;
t->parport_dir[0].child = t->port_dir;