commit 77c722dde9975361051c5530475f8f92ed67a506
author Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Sun Dec 16 16:46:57 2007 +0200
committer Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Wed Dec 26 19:15:15 2007 +0200
tree a2d4acd9f868a5d9fb5fcf96d7a7af488246e98c
parent b96bf4c33d4860bf1584ad2f9ed3b783d79aada8

UBI: bugfix: dont oops with NULL module parameter

E.g., it oopsed in case of: modprobe ubi mtd = 0

Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>

drivers/mtd/ubi/build.c

diff --git a/drivers/mtd/ubi/build.c b/drivers/mtd/ubi/build.c
index 9b94427..b85ca18 100644
--- a/drivers/mtd/ubi/build.c
+++ b/drivers/mtd/ubi/build.c
@@ -845,6 +845,9 @@
 	char *pbuf = &buf[0];
 	char *tokens[3] = {NULL, NULL, NULL};
 
+	if (!val)
+		return -EINVAL;
+
 	if (mtd_devs == UBI_MAX_DEVICES) {
 		printk("UBI error: too many parameters, max. is %d\n",
 		       UBI_MAX_DEVICES);