This is a note to let you know that I've just added the patch titled
wifi: brcmfmac: avoid invalid list operation when vendor attach fails
to the 6.6-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
wifi-brcmfmac-avoid-invalid-list-operation-when-vend.patch
and it can be found in the queue-6.6 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 0fbb887910c3f7a552d30a70e2c2c9e0be6ff113
Author: Arend van Spriel <arend.vanspriel@xxxxxxxxxxxx>
Date: Sat Jan 6 11:38:34 2024 +0100
wifi: brcmfmac: avoid invalid list operation when vendor attach fails
[ Upstream commit b822015a1f57268f5b2ff656736dc4004e7097da ]
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@xxxxxxxxxxxxxxx # 6.2.x
Fixes: d6a5c562214f ("wifi: brcmfmac: add support for vendor-specific firmware api")
Signed-off-by: Arend van Spriel <arend.vanspriel@xxxxxxxxxxxx>
Signed-off-by: Kalle Valo <kvalo@xxxxxxxxxx>
Link: https://msgid.link/20240106103835.269149-3-arend.vanspriel@xxxxxxxxxxxx
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwvid.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwvid.c
index 86eafdb405419..f610818c2b059 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwvid.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwvid.c
@@ -187,9 +187,10 @@ void brcmf_fwvid_detach_ops(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);
}
