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| author | Julien Brunel <brunel@diku.dk> | 2008-08-29 11:08:32 +0200 |
|---|---|---|
| committer | Artem Bityutskiy <Artem.Bityutskiy@nokia.com> | 2008-09-30 11:12:56 +0300 |
| commit | a70948b564e9f6cb81115c606d46f5b74a77b7c2 (patch) | |
| tree | e1a75ccf9580746d22409430b346436fd148dab7 /fs/ubifs/super.c | |
| parent | 746103aca2ae2b044e32a6ab06a6536652124c99 (diff) | |
| download | linux-a70948b564e9f6cb81115c606d46f5b74a77b7c2.tar.bz2 | |
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.c | 4 |
1 files changed, 0 insertions, 4 deletions
diff --git a/fs/ubifs/super.c b/fs/ubifs/super.c index 667c72d8a5cc..d87b0cf5f661 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; |