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sh: no need to check return value of debugfs_create functions

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When calling debugfs functions, there is no need to ever check the
return value.  The function can work or not, but the code logic should
never do something different based on this.

Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Cc: Rich Felker <dalias@libc.org>
Cc: <linux-sh@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Greg Kroah-Hartman 2019-01-22 15:50:30 +01:00
parent 2fcc6e202a
commit 03eb2a08fc
5 changed files with 13 additions and 50 deletions
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3
arch/sh/kernel/kdebugfs.c
View File

@ -9,9 +9,6 @@ EXPORT_SYMBOL(arch_debugfs_dir);
static int __init arch_kdebugfs_init(void)
{
arch_debugfs_dir = debugfs_create_dir("sh", NULL);
if (!arch_debugfs_dir)
return -ENOMEM;
return 0;
}
arch_initcall(arch_kdebugfs_init);

11
arch/sh/mm/asids-debugfs.c
View File

@ -63,13 +63,8 @@ static const struct file_operations asids_debugfs_fops = {
static int __init asids_debugfs_init(void)
{
struct dentry *asids_dentry;
asids_dentry = debugfs_create_file("asids", S_IRUSR, arch_debugfs_dir,
NULL, &asids_debugfs_fops);
if (!asids_dentry)
return -ENOMEM;
return PTR_ERR_OR_ZERO(asids_dentry);
debugfs_create_file("asids", S_IRUSR, arch_debugfs_dir, NULL,
&asids_debugfs_fops);
return 0;
}
device_initcall(asids_debugfs_init);

20
arch/sh/mm/cache-debugfs.c
View File

@ -109,22 +109,10 @@ static const struct file_operations cache_debugfs_fops = {
static int __init cache_debugfs_init(void)
{
struct dentry *dcache_dentry, *icache_dentry;
dcache_dentry = debugfs_create_file("dcache", S_IRUSR, arch_debugfs_dir,
(unsigned int *)CACHE_TYPE_DCACHE,
&cache_debugfs_fops);
if (!dcache_dentry)
return -ENOMEM;
icache_dentry = debugfs_create_file("icache", S_IRUSR, arch_debugfs_dir,
(unsigned int *)CACHE_TYPE_ICACHE,
&cache_debugfs_fops);
if (!icache_dentry) {
debugfs_remove(dcache_dentry);
return -ENOMEM;
}
debugfs_create_file("dcache", S_IRUSR, arch_debugfs_dir,
(void *)CACHE_TYPE_DCACHE, &cache_debugfs_fops);
debugfs_create_file("icache", S_IRUSR, arch_debugfs_dir,
(void *)CACHE_TYPE_ICACHE, &cache_debugfs_fops);
return 0;
}
module_init(cache_debugfs_init);

9
arch/sh/mm/pmb.c
View File

@ -861,13 +861,8 @@ static const struct file_operations pmb_debugfs_fops = {
static int __init pmb_debugfs_init(void)
{
struct dentry *dentry;
dentry = debugfs_create_file("pmb", S_IFREG | S_IRUGO,
arch_debugfs_dir, NULL, &pmb_debugfs_fops);
if (!dentry)
return -ENOMEM;
debugfs_create_file("pmb", S_IFREG | S_IRUGO, arch_debugfs_dir, NULL,
&pmb_debugfs_fops);
return 0;
}
subsys_initcall(pmb_debugfs_init);

20
arch/sh/mm/tlb-debugfs.c
View File

@ -149,22 +149,10 @@ static const struct file_operations tlb_debugfs_fops = {
static int __init tlb_debugfs_init(void)
{
struct dentry *itlb, *utlb;
itlb = debugfs_create_file("itlb", S_IRUSR, arch_debugfs_dir,
(unsigned int *)TLB_TYPE_ITLB,
&tlb_debugfs_fops);
if (unlikely(!itlb))
return -ENOMEM;
utlb = debugfs_create_file("utlb", S_IRUSR, arch_debugfs_dir,
(unsigned int *)TLB_TYPE_UTLB,
&tlb_debugfs_fops);
if (unlikely(!utlb)) {
debugfs_remove(itlb);
return -ENOMEM;
}
debugfs_create_file("itlb", S_IRUSR, arch_debugfs_dir,
(void *)TLB_TYPE_ITLB, &tlb_debugfs_fops);
debugfs_create_file("utlb", S_IRUSR, arch_debugfs_dir,
(void *)TLB_TYPE_UTLB, &tlb_debugfs_fops);
return 0;
}
module_init(tlb_debugfs_init);