[PATCH ath-current] wifi: ath12k: Fix scan state stuck in ABORTING after cancel_remain_on_channel

[Vasanthakumar Thiagarajan]

On 1/12/2026 5:25 PM, Yingying Tang wrote:
> Scan finish workqueue was introduced in __ath12k_mac_scan_finish() by [1].
> 
> During ath12k_mac_op_cancel_remain_on_channel(), scan state is set to
> ABORTING and should be reset to IDLE in the queued work. However,
> wiphy_work_cancel() is called before exiting
> ath12k_mac_op_cancel_remain_on_channel(), which prevents the work
> from running and leaves the state in ABORTING. This blocks all
> subsequent scan requests.
> 
> Replace wiphy_work_cancel() with wiphy_work_flush() to ensure the
> queued work runs and scan state is reset to IDLE.
> 
> Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.1.c5-00302-QCAHMTSWPL_V1.0_V2.0_SILICONZ-1.115823.3
> 
> Fixes: 3863f014ad23 ("wifi: ath12k: symmetrize scan vdev creation and deletion during HW scan") # [1]
> Signed-off-by: Yingying Tang <yingying.tang at oss.qualcomm.com>

Reviewed-by: Vasanthakumar Thiagarajan <vasanthakumar.thiagarajan at oss.qualcomm.com>