scsi: ufs: core: Clear cmd if abort succeeds in MCQ mode
authorPeter Wang <peter.wang@mediatek.com>
Wed, 15 Nov 2023 13:10:24 +0000 (21:10 +0800)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Fri, 8 Dec 2023 07:52:17 +0000 (08:52 +0100)
commitff7699d3620763b0dfe2ff93df4528880bf903a8
treee0bb1c2698fcc1c78adcd47a8d0add689631a9fc
parentb32c0a7cb93f9c5e726b45faf61311d90a7b5319
scsi: ufs: core: Clear cmd if abort succeeds in MCQ mode

commit 93e6c0e19d5bb12b49534a411c85e21d333731fa upstream.

In MCQ mode, if cmd is pending in device and abort succeeds, response will
not be returned by device. So we need clear the cmd, otherwise timeout will
happen and next time we use same tag we will get a WARN_ON(lrbp->cmd).

Below is error log:

  <3>[ 2277.447611][T21376] ufshcd-mtk 112b0000.ufshci: ufshcd_try_to_abort_task: cmd pending in the device. tag = 7
  <3>[ 2277.476954][T21376] ufshcd-mtk 112b0000.ufshci: Aborting tag 7 / CDB 0x2a succeeded
  <6>[ 2307.551263][T30974] ufshcd-mtk 112b0000.ufshci: ufshcd_abort: Device abort task at tag 7
  <4>[ 2307.623264][  T327] WARNING: CPU: 5 PID: 327 at source/drivers/ufs/core/ufshcd.c:3021 ufshcd_queuecommand+0x66c/0xe34

Fixes: ab248643d3d6 ("scsi: ufs: core: Add error handling for MCQ mode")
Cc: <stable@vger.kernel.org>
Signed-off-by: Peter Wang <peter.wang@mediatek.com>
Link: https://lore.kernel.org/r/20231115131024.15829-1-peter.wang@mediatek.com
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/ufs/core/ufshcd.c