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authorJulia Lawall <julia@diku.dk>2009-09-23 15:57:35 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2009-09-24 07:21:05 -0700
commita21f3c2a04d8a8d26b4bf3523368380feb8742b7 (patch)
tree9cb49488e75959254e49fa03197f548b6ee1e33f
parent9e5f1138d76e45b0ce56314ba0587e5942b55dcc (diff)
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>
-rw-r--r--fs/romfs/super.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/romfs/super.c b/fs/romfs/super.c
index 47f132d..c117fa8 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);