[RESEND PATCH 4/4] vfs: show_vfsstat: remove redundant initialization and check of error code

[Dmitry V. Levin]

Date: Wed, 18 Nov 2015 21:09:45 +

As err variable is now always checked right after each assignment, its
initialization is redundant and could be safely removed.  For the same
reason, the last check of err is also redundant and could be removed as
well.

Signed-off-by: Dmitry V. Levin 
---
 fs/proc_namespace.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/fs/proc_namespace.c b/fs/proc_namespace.c
index 7a6b2f3..3f1190d 100644
--- a/fs/proc_namespace.c
+++ b/fs/proc_namespace.c
@@ -193,7 +193,7 @@ static int show_vfsstat(struct seq_file *m, struct vfsmount 
*mnt)
struct mount *r = real_mount(mnt);
struct path mnt_path = { .dentry = mnt->mnt_root, .mnt = mnt };
struct super_block *sb = mnt_path.dentry->d_sb;
-   int err = 0;
+   int err;
 
/* device */
if (sb->s_op->show_devname) {
@@ -224,8 +224,7 @@ static int show_vfsstat(struct seq_file *m, struct vfsmount 
*mnt)
/* optional statistics */
if (sb->s_op->show_stats) {
seq_putc(m, ' ');
-   if (!err)
-   err = sb->s_op->show_stats(m, mnt_path.dentry);
+   err = sb->s_op->show_stats(m, mnt_path.dentry);
}
 
seq_putc(m, '\n');

-- 
ldv
--
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[RESEND PATCH 4/4] vfs: show_vfsstat: remove redundant initialization and check of error code

[Dmitry V. Levin]

Date: Wed, 18 Nov 2015 21:09:45 +

As err variable is now always checked right after each assignment, its
initialization is redundant and could be safely removed.  For the same
reason, the last check of err is also redundant and could be removed as
well.

Signed-off-by: Dmitry V. Levin 
---
 fs/proc_namespace.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/fs/proc_namespace.c b/fs/proc_namespace.c
index 7a6b2f3..3f1190d 100644
--- a/fs/proc_namespace.c
+++ b/fs/proc_namespace.c
@@ -193,7 +193,7 @@ static int show_vfsstat(struct seq_file *m, struct vfsmount 
*mnt)
struct mount *r = real_mount(mnt);
struct path mnt_path = { .dentry = mnt->mnt_root, .mnt = mnt };
struct super_block *sb = mnt_path.dentry->d_sb;
-   int err = 0;
+   int err;
 
/* device */
if (sb->s_op->show_devname) {
@@ -224,8 +224,7 @@ static int show_vfsstat(struct seq_file *m, struct vfsmount 
*mnt)
/* optional statistics */
if (sb->s_op->show_stats) {
seq_putc(m, ' ');
-   if (!err)
-   err = sb->s_op->show_stats(m, mnt_path.dentry);
+   err = sb->s_op->show_stats(m, mnt_path.dentry);
}
 
seq_putc(m, '\n');

-- 
ldv
--
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the body of a message to majord...@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/