From: Arend van Spriel Date: Sat, 6 Jan 2024 10:38:34 +0000 (+0100) Subject: wifi: brcmfmac: avoid invalid list operation when vendor attach fails X-Git-Tag: v6.9-rc1~159^2~432^2~18 X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=b822015a1f57268f5b2ff656736dc4004e7097da;p=thirdparty%2Fkernel%2Flinux.git wifi: brcmfmac: avoid invalid list operation when vendor attach fails When the brcmf_fwvid_attach() fails the driver instance is not added to the vendor list. Hence we should not try to delete it from that list when the brcmf_fwvid_detach() function is called in cleanup path. Cc: stable@vger.kernel.org # 6.2.x Fixes: d6a5c562214f ("wifi: brcmfmac: add support for vendor-specific firmware api") Signed-off-by: Arend van Spriel Signed-off-by: Kalle Valo Link: https://msgid.link/20240106103835.269149-3-arend.vanspriel@broadcom.com --- diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwvid.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwvid.c index f633e2bbd8916..b427782554b59 100644 --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwvid.c +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwvid.c @@ -186,9 +186,10 @@ void brcmf_fwvid_detach(struct brcmf_pub *drvr) mutex_lock(&fwvid_list_lock); - drvr->vops = NULL; - list_del(&drvr->bus_if->list); - + if (drvr->vops) { + drvr->vops = NULL; + list_del(&drvr->bus_if->list); + } mutex_unlock(&fwvid_list_lock); }