diff options
| author | Julia Lawall <julia@diku.dk> | 2009-09-23 15:57:35 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-09-24 07:21:05 -0700 |
| commit | a21f3c2a04d8a8d26b4bf3523368380feb8742b7 (patch) | |
| tree | 9cb49488e75959254e49fa03197f548b6ee1e33f /fs/romfs/super.c | |
| parent | 9e5f1138d76e45b0ce56314ba0587e5942b55dcc (diff) | |
| download | lwn-a21f3c2a04d8a8d26b4bf3523368380feb8742b7.tar.gz lwn-a21f3c2a04d8a8d26b4bf3523368380feb8742b7.zip | |
fs/romfs: correct error-handling code
romfs_iget returns an ERR_PTR value in an error case instead of NULL.
A simplified version of the semantic match that finds this problem is as
follows: (http://coccinelle.lip6.fr/)
// <smpl>
@match exists@
expression x, E;
statement S1, S2;
@@
x = romfs_iget(...)
... when != x = E
(
* if (x == NULL || ...) S1 else S2
|
* if (x == NULL && ...) S1 else S2
)
// </smpl>
Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/romfs/super.c')
| -rw-r--r-- | fs/romfs/super.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/romfs/super.c b/fs/romfs/super.c index 47f132df0c3f..c117fa80d1e9 100644 --- a/fs/romfs/super.c +++ b/fs/romfs/super.c @@ -528,7 +528,7 @@ static int romfs_fill_super(struct super_block *sb, void *data, int silent) pos = (ROMFH_SIZE + len + 1 + ROMFH_PAD) & ROMFH_MASK; root = romfs_iget(sb, pos); - if (!root) + if (IS_ERR(root)) goto error; sb->s_root = d_alloc_root(root); |