scsi: ufs: core: Fix error handler host_sem issue

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Fix the issue where host_sem is not released due to a new return path in
commit f966e02ae5 ("scsi: ufs: core: Fix runtime suspend error
deadlock").

Check pm_op_in_progress before acquiring hba->host_sem to prevent
deadlocks and ensure proper resource management during error
handling. Add comment for use ufshcd_rpm_get_noresume() to safely
perform link recovery without interfering with ongoing PM operations.

Fixes: f966e02ae5 ("scsi: ufs: core: Fix runtime suspend error deadlock")
Reported-by: Dan Carpenter <dan.carpenter@linaro.org>
Signed-off-by: Peter Wang <peter.wang@mediatek.com>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Link: https://patch.msgid.link/20251008065651.1589614-2-peter.wang@mediatek.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

...

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Peter Wang 2025-10-08 14:55:43 +08:00 • committed by Martin K. Petersen

parent a0b7780602

commit e23ef4f22d

1 changed files with 14 additions and 8 deletions

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drivers/ufs/core/ufshcd.c

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