tmakin/ack-tegra
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

FROMGIT: scsi: ufs: core: Use link recovery when h8 exit fails during runtime resume

Browse Source 
If the h8 exit fails during runtime resume process, the runtime thread
enters runtime suspend immediately and the error handler operates at the
same time.  It becomes stuck and cannot be recovered through the error
handler.  To fix this, use link recovery instead of the error handler.

Fixes: 4db7a23605 ("scsi: ufs: Fix concurrency of error handler and other error recovery paths")
Signed-off-by: Seunghui Lee <sh043.lee@samsung.com>
Link: https://lore.kernel.org/r/20250717081213.6811-1-sh043.lee@samsung.com
Reviewed-by: Bean Huo <beanhuo@micron.com>
Acked-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

BUG: 434106145
Link: https://lore.kernel.org/r/20250717081213.6811-1-sh043.lee@samsung.com
(cherry picked from commit 35dabf4503b94a697bababe94678a8bc989c3223
http://git.kernel.org/pub/scm/linux/kernel/git/mkp/scsi.git 6.17/scsi-staging)
Change-Id: Ife911f7a9d34d5860d480222eb8f393b4614afaf
Signed-off-by: Manish Pandey <quic_mapa@quicinc.com>
This commit is contained in:
Manish Pandey
2025-08-01 18:49:54 +05:30
committed by Sandeep Dhavale
parent 8ff877aa63
commit b632dc2e1d
1 changed files with 9 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files
drivers/ufs/core/ufshcd.c
+9 -1
View File
@@ -4436,7 +4436,7 @@ out:
hba->uic_async_done = NULL;
if (reenable_intr)
ufshcd_enable_intr(hba, UIC_COMMAND_COMPL);
if (ret) {
if (ret && !hba->pm_op_in_progress) {
ufshcd_set_link_broken(hba);
ufshcd_schedule_eh_work(hba);
}
@@ -4444,6 +4444,14 @@ out_unlock:
spin_unlock_irqrestore(hba->host->host_lock, flags);
mutex_unlock(&hba->uic_cmd_mutex);
/*
* If the h8 exit fails during the runtime resume process,
* it becomes stuck and cannot be recovered through the error handler.
* To fix this, use link recovery instead of the error handler.
*/
if (ret && hba->pm_op_in_progress)
ret = ufshcd_link_recovery(hba);
return ret;
}