From: Felix Fietkau <nbd@openwrt.org>
Date: Sun, 3 Aug 2014 13:00:54 +0000 (+0200)
Subject: blobmsg: accept NULL attr in blobmsg_get_string()
X-Git-Url: http://git.openwrt.org/?p=project%2Flibubox.git;a=commitdiff_plain;h=042f1a2546660e8aadde2ee65f5fe7a9cc9b1378

blobmsg: accept NULL attr in blobmsg_get_string()

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
---

diff --git a/blobmsg.h b/blobmsg.h
index 7041aca..e58f95d 100644
--- a/blobmsg.h
+++ b/blobmsg.h
@@ -214,6 +214,9 @@ static inline uint64_t blobmsg_get_u64(struct blob_attr *attr)
 
 static inline char *blobmsg_get_string(struct blob_attr *attr)
 {
+	if (!attr)
+		return NULL;
+
 	return (char *) blobmsg_data(attr);
 }