blob: improve out-of-memory handling

Signed-off-by: Chen Bin <ewolfok@126.com>
Signed-off-by: Felix Fietkau <nbd@openwrt.org>

1 files changed, 2 insertions, 0 deletions

diff --git a/blobmsg.c b/blobmsg.c
index a2c2c5d..9fe96e4 100644
--- a/blobmsg.c
+++ b/blobmsg.c
@@ -220,6 +220,8 @@ blobmsg_open_nested(struct blob_buf *buf, const char *name, bool array)
 		name = "";
 
 	head = blobmsg_new(buf, type, name, 0, &data);
+	if (!head)
+		return NULL;
 	blob_set_raw_len(buf->head, blob_pad_len(buf->head) - blobmsg_hdrlen(strlen(name)));
 	buf->head = head;
 	return (void *)offset;