libertas: check return value of alloc_workqueue
authorPan Bian <bianpan2016@163.com>
Sun, 23 Apr 2017 13:19:38 +0000 (21:19 +0800)
committerKalle Valo <kvalo@codeaurora.org>
Wed, 26 Apr 2017 09:03:24 +0000 (12:03 +0300)
commitdc3f89c38a8406554ffeffa370aad086a9c5e9de
tree71712cd591dae6942cd1e2f14d682e4e18dc4365
parent5fb01e91daf84ad1e50edfcf63116ecbe31e7ba7
libertas: check return value of alloc_workqueue

Function alloc_workqueue() will return a NULL pointer if there is no
enough memory, and its return value should be validated before using.
However, in function if_spi_probe(), its return value is not checked.
This may result in a NULL dereference bug. This patch fixes the bug.

Signed-off-by: Pan Bian <bianpan2016@163.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
drivers/net/wireless/marvell/libertas/if_spi.c