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authorJulien Brunel <brunel@diku.dk>2008-08-29 11:08:32 +0200
committerArtem Bityutskiy <Artem.Bityutskiy@nokia.com>2008-09-30 11:12:56 +0300
commita70948b564e9f6cb81115c606d46f5b74a77b7c2 (patch)
treee1a75ccf9580746d22409430b346436fd148dab7 /fs/ubifs/super.c
parent746103aca2ae2b044e32a6ab06a6536652124c99 (diff)
UBIFS: use an IS_ERR test rather than a NULL test
In case of error, the function kthread_create returns an ERR pointer, but never returns a NULL pointer. So a NULL test that comes before an IS_ERR test should be deleted. The semantic match that finds this problem is as follows: (http://www.emn.fr/x-info/coccinelle/) // <smpl> @match_bad_null_test@ expression x, E; statement S1,S2; @@ x = kthread_create(...) ... when != x = E * if (x == NULL) S1 else S2 // </smpl> Signed-off-by: Julien Brunel <brunel@diku.dk> Signed-off-by: Julia Lawall <julia@diku.dk> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Diffstat (limited to 'fs/ubifs/super.c')
-rw-r--r--fs/ubifs/super.c4
1 files changed, 0 insertions, 4 deletions
diff --git a/fs/ubifs/super.c b/fs/ubifs/super.c
index 667c72d8a5c..d87b0cf5f66 100644
--- a/fs/ubifs/super.c
+++ b/fs/ubifs/super.c
@@ -1032,8 +1032,6 @@ static int mount_ubifs(struct ubifs_info *c)
/* Create background thread */
c->bgt = kthread_create(ubifs_bg_thread, c, c->bgt_name);
- if (!c->bgt)
- c->bgt = ERR_PTR(-EINVAL);
if (IS_ERR(c->bgt)) {
err = PTR_ERR(c->bgt);
c->bgt = NULL;
@@ -1347,8 +1345,6 @@ static int ubifs_remount_rw(struct ubifs_info *c)
/* Create background thread */
c->bgt = kthread_create(ubifs_bg_thread, c, c->bgt_name);
- if (!c->bgt)
- c->bgt = ERR_PTR(-EINVAL);
if (IS_ERR(c->bgt)) {
err = PTR_ERR(c->bgt);
c->bgt = NULL;