mwifiex: fix uninitialized variable access in pcie_remove
authorArnd Bergmann <arnd@arndb.de>
Fri, 13 Jan 2017 15:35:03 +0000 (16:35 +0100)
committerKalle Valo <kvalo@codeaurora.org>
Tue, 17 Jan 2017 11:54:57 +0000 (13:54 +0200)
commit0e8edb9aed03892844713bb76a8e1d2d138f3175
tree29f9fcbf48871c1c807d28c7f5453f0cee0b99f5
parentcc75c577806a53893122829d91cb122b51643a2d
mwifiex: fix uninitialized variable access in pcie_remove

Checking the firmware status from PCIe register only works
if the register is available, otherwise we end up with
random behavior:

drivers/net/wireless/marvell/mwifiex/pcie.c: In function 'mwifiex_pcie_remove':
drivers/net/wireless/marvell/mwifiex/pcie.c:585:5: error: 'fw_status' may be used uninitialized in this function [-Werror=maybe-uninitialized]

This makes sure we treat the absence of the register as a failure.

Fixes: 045f0c1b5e26 ("mwifiex: get rid of global user_rmmod flag")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
drivers/net/wireless/marvell/mwifiex/pcie.c