X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=fs%2Fposix_acl.c;h=6c70ab22a3e3b34ba346f8497bdcdd5c75cbab86;hb=b9c061bd4888b02bea1f60dcc82e43af01074db3;hp=cea4623f1ed63007b8da0a8486ac65595415f895;hpb=d6748066ad0e8b2514545998f8367ebb3906f299;p=pandora-kernel.git

diff --git a/fs/posix_acl.c b/fs/posix_acl.c
index cea4623f1ed6..6c70ab22a3e3 100644
--- a/fs/posix_acl.c
+++ b/fs/posix_acl.c
@@ -155,6 +155,12 @@ posix_acl_equiv_mode(const struct posix_acl *acl, umode_t *mode_p)
 	umode_t mode = 0;
 	int not_equiv = 0;
 
+	/*
+	 * A null ACL can always be presented as mode bits.
+	 */
+	if (!acl)
+		return 0;
+
 	FOREACH_ACL_ENTRY(pa, acl, pe) {
 		switch (pa->e_tag) {
 			case ACL_USER_OBJ: