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Subject[PATCH] scsi: ufs: Check workqueue exists before destroying it
Date
In ufshcd_hba_exit() the clock gating workqueue is always destroyed
when clock gating is supported. However the workqueue pointer is NULL
when ufshcd_init() fails before the workqueue is created. Only destroy
the workqueue if it exists.

Signed-off-by: Matthias Kaehlcke <mka@chromium.org>
---
drivers/scsi/ufs/ufshcd.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index 397081d320b1..401f7dbe2981 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -7190,7 +7190,8 @@ static void ufshcd_hba_exit(struct ufs_hba *hba)
if (ufshcd_is_clkscaling_supported(hba)) {
if (hba->devfreq)
ufshcd_suspend_clkscaling(hba);
- destroy_workqueue(hba->clk_scaling.workq);
+ if (hba->clk_scaling.workq)
+ destroy_workqueue(hba->clk_scaling.workq);
ufshcd_devfreq_remove(hba);
}
ufshcd_setup_clocks(hba, false);
--
2.18.0.597.ga71716f1ad-goog
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