This patch fixes semantic warning for debugging data dump feature.
Previous code is based on the assumption that skb is not null.
New change makes sure that we already have data buffer.
Reported-by: NDan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: NZhaoyang Liu <liuzy@marvell.com>
Signed-off-by: NAvinash Patil <patila@marvell.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>