tree 9cb49488e75959254e49fa03197f548b6ee1e33f
parent 9e5f1138d76e45b0ce56314ba0587e5942b55dcc
author Julia Lawall <julia@diku.dk> 1253746655 -0700
committer Linus Torvalds <torvalds@linux-foundation.org> 1253802065 -0700

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>