In brcmf_sdio_firmware_callback() we need to unbind the driver from both sdio_func devices. Cc: stable@xxxxxxxxxxxxxxx # 4.9.x- Tested-by: Enric Balletbo i Serra <enric.balletbo@xxxxxxxxxxxxx> Reviewed-by: Hante Meuleman <hante.meuleman@xxxxxxxxxxxx> Reviewed-by: Pieter-Paul Giesberts <pieter-paul.giesberts@xxxxxxxxxxxx> Reviewed-by: Franky Lin <franky.lin@xxxxxxxxxxxx> Signed-off-by: Arend van Spriel <arend.vanspriel@xxxxxxxxxxxx> --- drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c index 6e1fcdc..5653d6d 100644 --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c @@ -3992,14 +3992,14 @@ static void brcmf_sdio_firmware_callback(struct device *dev, int err, u8 saveclk; brcmf_dbg(TRACE, "Enter: dev=%s, err=%d\n", dev_name(dev), err); + bus_if = dev_get_drvdata(dev); + sdiodev = bus_if->bus_priv.sdio; if (err) goto fail; - bus_if = dev_get_drvdata(dev); if (!bus_if->drvr) return; - sdiodev = bus_if->bus_priv.sdio; bus = sdiodev->bus; /* try to download image and nvram to the dongle */ @@ -4088,6 +4088,7 @@ static void brcmf_sdio_firmware_callback(struct device *dev, int err, fail: brcmf_dbg(TRACE, "failed: dev=%s, err=%d\n", dev_name(dev), err); device_release_driver(dev); + device_release_driver(&sdiodev->func[2]->dev); } struct brcmf_sdio *brcmf_sdio_probe(struct brcmf_sdio_dev *sdiodev) -- 1.9.1