Commit b153e73b authored Feb 03, 2020 by Arun Kumar Neelakantam Committed by Gerrit - the friendly Code Review server Dec 28, 2020

drivers: char: msm_smd_pkt: Return error in case driver is not ready



In some cases RPMSG callback is called before RPMSG probe complete.

Return error code from call back to avoid invalid access when probe
is not completed.

Change-Id: Ib3dbec47e44d7542c8d3d44aefe3cb750384f5b5
Signed-off-by: Arun Kumar Neelakantam <aneela@codeaurora.org>

parent 176254e5

drivers/char/msm_smd_pkt.c

+3 −0

Original line number	Diff line number	Diff line
		@@ -168,6 +168,9 @@ static int smd_pkt_rpdev_cb(struct rpmsg_device rpdev, void buf, int len,
		unsigned long flags;
		struct sk_buff *skb;

		if (!smd_pkt_devp)
		return -EINVAL;

		skb = alloc_skb(len, GFP_ATOMIC);

		if (!skb)