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authorJ. Bruce Fields <bfields@citi.umich.edu>2007-03-01 14:34:35 -0500
committerJ. Bruce Fields <bfields@citi.umich.edu>2007-07-18 19:09:27 -0400
commite32b8ee27b486f682a6d13533cfe6549c8abcdef (patch)
tree2313014defb0f65b2922df766311e41a5e0dbb98 /fs/locks.c
parentd2ab0b0c4c2570921a9ec1eff1e3a5143e05b231 (diff)
downloadlwn-e32b8ee27b486f682a6d13533cfe6549c8abcdef.tar.gz
lwn-e32b8ee27b486f682a6d13533cfe6549c8abcdef.zip
locks: clean up lease_alloc()
Return the newly allocated structure as the return value instead of using a struct ** parameter. Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
Diffstat (limited to 'fs/locks.c')
-rw-r--r--fs/locks.c21
1 files changed, 9 insertions, 12 deletions
diff --git a/fs/locks.c b/fs/locks.c
index 3c23fd261022..838ca542c556 100644
--- a/fs/locks.c
+++ b/fs/locks.c
@@ -458,22 +458,20 @@ static int lease_init(struct file *filp, int type, struct file_lock *fl)
}
/* Allocate a file_lock initialised to this type of lease */
-static int lease_alloc(struct file *filp, int type, struct file_lock **flp)
+static struct file_lock *lease_alloc(struct file *filp, int type)
{
struct file_lock *fl = locks_alloc_lock();
int error = -ENOMEM;
if (fl == NULL)
- goto out;
+ return ERR_PTR(error);
error = lease_init(filp, type, fl);
if (error) {
locks_free_lock(fl);
- fl = NULL;
+ return ERR_PTR(error);
}
-out:
- *flp = fl;
- return error;
+ return fl;
}
/* Check if two locks overlap each other.
@@ -1179,12 +1177,10 @@ int __break_lease(struct inode *inode, unsigned int mode)
int error = 0, future;
struct file_lock *new_fl, *flock;
struct file_lock *fl;
- int alloc_err;
unsigned long break_time;
int i_have_this_lease = 0;
- alloc_err = lease_alloc(NULL, mode & FMODE_WRITE ? F_WRLCK : F_RDLCK,
- &new_fl);
+ new_fl = lease_alloc(NULL, mode & FMODE_WRITE ? F_WRLCK : F_RDLCK);
lock_kernel();
@@ -1212,8 +1208,9 @@ int __break_lease(struct inode *inode, unsigned int mode)
goto out;
}
- if (alloc_err && !i_have_this_lease && ((mode & O_NONBLOCK) == 0)) {
- error = alloc_err;
+ if (IS_ERR(new_fl) && !i_have_this_lease
+ && ((mode & O_NONBLOCK) == 0)) {
+ error = PTR_ERR(new_fl);
goto out;
}
@@ -1260,7 +1257,7 @@ restart:
out:
unlock_kernel();
- if (!alloc_err)
+ if (!IS_ERR(new_fl))
locks_free_lock(new_fl);
return error;
}