Dan Carpenter [off-list ref] wrote:

This error path leads to a Smatch warning:

	drivers/net/wireless/ath/ath11k/mac.c:4269 ath11k_mac_op_start()
	error: double unlocked '&ar->conf_mutex' (orig line 4251)

We're not holding the lock when we do the "goto err;" so it leads to a
double unlock.  The fix is to hold the lock for a little longer.

Fixes: c83c500b55b6 ("ath11k: enable idle power save mode")
Signed-off-by: Dan Carpenter <redacted>
[kvalo@codeaurora.org: move also rcu_assign_pointer() call]
Signed-off-by: Kalle Valo <redacted>

Patch applied to ath-next branch of ath.git, thanks.

c202e2ebe1dc ath11k: fix a locking bug in ath11k_mac_op_start()

-- 
https://patchwork.kernel.org/project/linux-wireless/patch/YBk4GoeE+yc0wlJH@mwanda/

https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches