[ Upstream commit40018a8fa9] Check for if the usb_alloc_urb() failed. Fixes:68d57a07bf("wireless: add plfxlc driver for pureLiFi X, XL, XC devices") Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org> Signed-off-by: Kalle Valo <kvalo@kernel.org> Link: https://lore.kernel.org/r/e8d4a19a-f251-4101-a89b-607345e938cb@moroto.mountain Signed-off-by: Sasha Levin <sashal@kernel.org>