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kernfs: Drop unnecessary "mutex" local variable initialization 

These are unnecessary and unconventional. Remove them. Also move variable
declaration into the block that it's used. No functional changes.

Cc: Imran Khan <imran.f.khan@oracle.com>
Tested-by: Chengming Zhou <zhouchengming@bytedance.com>
Reviewed-by: Chengming Zhou <zhouchengming@bytedance.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Link: https://lore.kernel.org/r/20220828050440.734579-3-tj@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Tejun Heo 2022-08-27 19:04:33 -10:00 committed by Greg Kroah-Hartman
parent 3db48aca87
commit b52c2379c3
1 changed files with 5 additions and 4 deletions
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9
fs/kernfs/file.c
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@ -555,7 +555,7 @@ static int kernfs_get_open_node(struct kernfs_node *kn,
struct kernfs_open_file *of)
{
struct kernfs_open_node *on, *new_on = NULL;
struct mutex *mutex = NULL;
struct mutex *mutex;
mutex = kernfs_open_file_mutex_lock(kn);
on = kernfs_deref_open_node_locked(kn);
@ -599,7 +599,7 @@ static void kernfs_unlink_open_file(struct kernfs_node *kn,
struct kernfs_open_file *of)
{
struct kernfs_open_node *on;
struct mutex *mutex = NULL;
struct mutex *mutex;
mutex = kernfs_open_file_mutex_lock(kn);
@ -776,9 +776,10 @@ static int kernfs_fop_release(struct inode *inode, struct file *filp)
{
struct kernfs_node *kn = inode->i_private;
struct kernfs_open_file *of = kernfs_of(filp);
struct mutex *mutex = NULL;
if (kn->flags & KERNFS_HAS_RELEASE) {
struct mutex *mutex;
mutex = kernfs_open_file_mutex_lock(kn);
kernfs_release_file(kn, of);
mutex_unlock(mutex);
@ -796,7 +797,7 @@ void kernfs_drain_open_files(struct kernfs_node *kn)
{
struct kernfs_open_node *on;
struct kernfs_open_file *of;
struct mutex *mutex = NULL;
struct mutex *mutex;
if (!(kn->flags & (KERNFS_HAS_MMAP | KERNFS_HAS_RELEASE)))
return;