tree 896e8ba8725599e6ecb9c4b1618a89139017ae38
parent 197a4e4e1f7ef11458f09b4dd74397baf6758133
author Amitkumar Karwar <akarwar@marvell.com> 1328157704 -0800
committer John W. Linville <linville@tuxdriver.com> 1328558150 -0500

mwifiex: fix NULL pointer dereference in set_channel()

In set_channel() callback handler, "priv" pointer is derived from
net_device. Sometimes net_device pointer coming from the stack
is NULL which causes kernel crash.
This patch fixes the problem by deriving "priv" from wiphy
when net_device pointer is NULL.

Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>