rtlwifi: Fix possible NULL dereference
authorJesper Juhl <jj@chaosbits.net>
Fri, 21 Jan 2011 19:40:54 +0000 (13:40 -0600)
committerJohn W. Linville <linville@tuxdriver.com>
Fri, 21 Jan 2011 20:07:38 +0000 (15:07 -0500)
commitbdc4bf652bc0271ba8f1f25bbd3dbac90bead44e
tree0df37186346b816a1f2c3c09b091175fc0f35568
parent783cd01e140d9db5c2d2279a96b81e16f9d81fef
rtlwifi: Fix possible NULL dereference

In drivers/net/wireless/rtlwifi/pci.c::_rtl_pci_rx_interrupt() we call
dev_alloc_skb(), which may fail and return NULL, but we do not check the
returned value against NULL before dereferencing the returned pointer.
This may lead to a NULL pointer dereference which means we'll crash - not
good.

In a separate call to dev_alloc_skb(), the debug level is changed so that
the failure message will always be logged.

Signed-off-by: Jesper Juhl <jj@chaosbits.net>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
drivers/net/wireless/rtlwifi/pci.c