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authorJeff Layton <jlayton@primarydata.com>2014-09-04 10:25:06 -0400
committerJeff Layton <jlayton@primarydata.com>2014-10-07 14:06:13 -0400
commit6e129d00689c4d75253d1d428e82047b0aef5891 (patch)
tree5a23b9faf036d2a2559148136ed73e4c32cba9c5 /fs/locks.c
parent7ca76311fe6c397e9f332e5e6c79e3310d5ee98a (diff)
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locks: flock_make_lock should return a struct file_lock (or PTR_ERR)
Eliminate the need for a return pointer. Signed-off-by: Jeff Layton <jlayton@primarydata.com> Reviewed-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to 'fs/locks.c')
-rw-r--r--fs/locks.c19
1 files changed, 11 insertions, 8 deletions
diff --git a/fs/locks.c b/fs/locks.c
index 314135a..735b8d3 100644
--- a/fs/locks.c
+++ b/fs/locks.c
@@ -326,17 +326,18 @@ static inline int flock_translate_cmd(int cmd) {
}
/* Fill in a file_lock structure with an appropriate FLOCK lock. */
-static int flock_make_lock(struct file *filp, struct file_lock **lock,
- unsigned int cmd)
+static struct file_lock *
+flock_make_lock(struct file *filp, unsigned int cmd)
{
struct file_lock *fl;
int type = flock_translate_cmd(cmd);
+
if (type < 0)
- return type;
+ return ERR_PTR(type);
fl = locks_alloc_lock();
if (fl == NULL)
- return -ENOMEM;
+ return ERR_PTR(-ENOMEM);
fl->fl_file = filp;
fl->fl_owner = filp;
@@ -345,8 +346,7 @@ static int flock_make_lock(struct file *filp, struct file_lock **lock,
fl->fl_type = type;
fl->fl_end = OFFSET_MAX;
- *lock = fl;
- return 0;
+ return fl;
}
static int assign_type(struct file_lock *fl, long type)
@@ -1885,9 +1885,12 @@ SYSCALL_DEFINE2(flock, unsigned int, fd, unsigned int, cmd)
!(f.file->f_mode & (FMODE_READ|FMODE_WRITE)))
goto out_putf;
- error = flock_make_lock(f.file, &lock, cmd);
- if (error)
+ lock = flock_make_lock(f.file, cmd);
+ if (IS_ERR(lock)) {
+ error = PTR_ERR(lock);
goto out_putf;
+ }
+
if (can_sleep)
lock->fl_flags |= FL_SLEEP;
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