From: Julien Brunel <brunel@xxxxxxx> In case of error, the function open_xa_dir returns an ERR pointer, but never returns a NULL pointer. So a NULL test that comes after 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 = open_xa_dir(...) ... when != x = E ( * if (x == NULL && ...) S1 else S2 | * if (x == NULL || ...) S1 else S2 ) // </smpl> Signed-off-by: Julien Brunel <brunel@xxxxxxx> Signed-off-by: Julia Lawall <julia@xxxxxxx> --- fs/reiserfs/xattr.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff -u -p a/fs/reiserfs/xattr.c b/fs/reiserfs/xattr.c --- a/fs/reiserfs/xattr.c +++ b/fs/reiserfs/xattr.c @@ -155,7 +155,7 @@ static struct dentry *get_xa_file_dentry xadir = open_xa_dir(inode, flags); if (IS_ERR(xadir)) { return ERR_CAST(xadir); - } else if (xadir && !xadir->d_inode) { + } else if (!xadir->d_inode) { dput(xadir); return ERR_PTR(-ENODATA); } -- To unsubscribe from this list: send the line "unsubscribe reiserfs-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
