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| author | Peter Wang <peter.wang@mediatek.com> | 2024-03-28 19:12:44 +0800 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2024-04-01 21:43:46 -0400 |
| commit | 2a26a11e9c258b14be6fd98f8a85f20ac1fff66e (patch) | |
| tree | cfe24f44fa07439071051ddee89dadfb6550b67e /drivers/ufs/core/ufshcd.c | |
| parent | e675a4fd6d1f8990d3bed5dada3d20edfa000423 (diff) | |
| download | linux-stable-2a26a11e9c258b14be6fd98f8a85f20ac1fff66e.tar.gz linux-stable-2a26a11e9c258b14be6fd98f8a85f20ac1fff66e.tar.bz2 linux-stable-2a26a11e9c258b14be6fd98f8a85f20ac1fff66e.zip | |
scsi: ufs: core: Fix MCQ mode dev command timeout
When a dev command times out in MCQ mode, a successfully cleared command
should cause a retry. However, because we currently return 0, the caller
considers the command a success which causes the following error to be
logged: "Invalid offset 0x0 in descriptor IDN 0x9, length 0x0".
Retry if clearing the command was successful.
Signed-off-by: Peter Wang <peter.wang@mediatek.com>
Link: https://lore.kernel.org/r/20240328111244.3599-1-peter.wang@mediatek.com
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/ufs/core/ufshcd.c')
| -rw-r--r-- | drivers/ufs/core/ufshcd.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/ufs/core/ufshcd.c b/drivers/ufs/core/ufshcd.c index 292b06f361a2..a0f8e930167d 100644 --- a/drivers/ufs/core/ufshcd.c +++ b/drivers/ufs/core/ufshcd.c @@ -3217,7 +3217,9 @@ retry: /* MCQ mode */ if (is_mcq_enabled(hba)) { - err = ufshcd_clear_cmd(hba, lrbp->task_tag); + /* successfully cleared the command, retry if needed */ + if (ufshcd_clear_cmd(hba, lrbp->task_tag) == 0) + err = -EAGAIN; hba->dev_cmd.complete = NULL; return err; } |