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| author | Can Guo <cang@codeaurora.org> | 2020-11-02 22:24:39 -0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-11-24 13:27:19 +0100 |
| commit | 4d3413ba2360363f77fa133af128a3034203a021 (patch) | |
| tree | 0a2356d51c80d310031b494223a584406f41b716 /tools/testing | |
| parent | 6c5f86abc3b58054455f23eaee5537dba353c8d6 (diff) | |
scsi: ufs: Fix unbalanced scsi_block_reqs_cnt caused by ufshcd_hold()
[ Upstream commit da3fecb0040324c08f1587e5bff1f15f36be1872 ]
The scsi_block_reqs_cnt increased in ufshcd_hold() is supposed to be
decreased back in ufshcd_ungate_work() in a paired way. However, if
specific ufshcd_hold/release sequences are met, it is possible that
scsi_block_reqs_cnt is increased twice but only one ungate work is
queued. To make sure scsi_block_reqs_cnt is handled by ufshcd_hold() and
ufshcd_ungate_work() in a paired way, increase it only if queue_work()
returns true.
Link: https://lore.kernel.org/r/1604384682-15837-2-git-send-email-cang@codeaurora.org
Reviewed-by: Hongwu Su <hongwus@codeaurora.org>
Reviewed-by: Stanley Chu <stanley.chu@mediatek.com>
Reviewed-by: Bean Huo <beanhuo@micron.com>
Signed-off-by: Can Guo <cang@codeaurora.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'tools/testing')
0 files changed, 0 insertions, 0 deletions