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scsi: ufs: Avoid to call REQ_CLKS_OFF to CLKS_OFF

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[ Upstream commit fd62de114f ]

Once UFS is gated with CLKS_OFF, it should not call REQ_CLKS_OFF
again. This can lead to hibern8_enter failure.

Link: https://lore.kernel.org/r/20201117165839.1643377-2-jaegeuk@kernel.org
Reviewed-by: Can Guo <cang@codeaurora.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Jaegeuk Kim
2020-11-17 08:58:33 -08:00
committed by Greg Kroah-Hartman
parent 3897b71e1a
commit df7ae049e0
1 changed files with 2 additions and 1 deletions
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3
drivers/scsi/ufs/ufshcd.c
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@@ -1752,7 +1752,8 @@ static void __ufshcd_release(struct ufs_hba *hba)
if (hba->clk_gating.active_reqs || hba->clk_gating.is_suspended ||
hba->ufshcd_state != UFSHCD_STATE_OPERATIONAL ||
ufshcd_any_tag_in_use(hba) || hba->outstanding_tasks ||
hba->active_uic_cmd || hba->uic_async_done)
hba->active_uic_cmd || hba->uic_async_done ||
hba->clk_gating.state == CLKS_OFF)
return;
hba->clk_gating.state = REQ_CLKS_OFF;