brcmfmac: unbind all devices upon failure in firmware callback
When request firmware fails, brcmf_ops_sdio_remove is being called and brcmf_bus freed. In such circumstancies if you do a suspend/resume cycle the kernel hangs on resume due a NULL pointer dereference in resume function. So in brcmf_sdio_firmware_callback() we need to unbind the driver from both sdio_func devices when firmware load failure is indicated. Cc: stable@vger.kernel.org # 4.9.x- Tested-by: NEnric Balletbo i Serra <enric.balletbo@collabora.com> Reviewed-by: NHante Meuleman <hante.meuleman@broadcom.com> Reviewed-by: NPieter-Paul Giesberts <pieter-paul.giesberts@broadcom.com> Reviewed-by: NFranky Lin <franky.lin@broadcom.com> Signed-off-by: NArend van Spriel <arend.vanspriel@broadcom.com> Signed-off-by: NKalle Valo <kvalo@codeaurora.org>
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