When nlmsg_put fails, the lack of error-handling code may cause unexpected results. This patch adds error-handling code after calling nlmsg_put. Signed-off-by: Zhouyang Jia <jiazhouyang09@xxxxxxxxx> --- drivers/staging/gdm724x/netlink_k.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/staging/gdm724x/netlink_k.c b/drivers/staging/gdm724x/netlink_k.c index abe2425..4623140 100644 --- a/drivers/staging/gdm724x/netlink_k.c +++ b/drivers/staging/gdm724x/netlink_k.c @@ -119,6 +119,9 @@ int netlink_send(struct sock *sock, int group, u16 type, void *msg, int len) seq++; nlh = nlmsg_put(skb, 0, seq, type, len, 0); + if (!nlh) + return -EMSGSIZE; + memcpy(NLMSG_DATA(nlh), msg, len); NETLINK_CB(skb).portid = 0; NETLINK_CB(skb).dst_group = 0; -- 2.7.4 _______________________________________________ devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxx http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel
