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scsi: ufs: Fix to check the return value of alloc_ordered_workqueue

Message ID 20190319175423.13724-1-pakki001@umn.edu (mailing list archive)
State Changes Requested
Headers show
Series scsi: ufs: Fix to check the return value of alloc_ordered_workqueue | expand

Commit Message

Aditya Pakki March 19, 2019, 5:54 p.m. UTC
In ufshcd_init_clk_gating, alloc_ordered_workqueue may fail and return
NULL. The patch handles error consistent with other invocations in this
module.

Signed-off-by: Aditya Pakki <pakki001@umn.edu>
---
 drivers/scsi/ufs/ufshcd.c | 2 ++
 1 file changed, 2 insertions(+)

Comments

Avri Altman March 26, 2019, 2:17 p.m. UTC | #1
Hi,
> 
> In ufshcd_init_clk_gating, alloc_ordered_workqueue may fail and return
> NULL. The patch handles error consistent with other invocations in this
> module.
Not sure that's good enough, as later on we will try to queue work to that workqueue.

Thanks,
Avri


> 
> Signed-off-by: Aditya Pakki <pakki001@umn.edu>
> ---
>  drivers/scsi/ufs/ufshcd.c | 2 ++
>  1 file changed, 2 insertions(+)
> 
> diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
> index e040f9dd9ff3..701b2da25f09 100644
> --- a/drivers/scsi/ufs/ufshcd.c
> +++ b/drivers/scsi/ufs/ufshcd.c
> @@ -1791,6 +1791,8 @@ static void ufshcd_init_clk_gating(struct ufs_hba
> *hba)
>  		 hba->host->host_no);
>  	hba->clk_gating.clk_gating_workq =
> alloc_ordered_workqueue(wq_name,
> 
> WQ_MEM_RECLAIM);
> +	if (!hba->clk_gating.clk_gating_workq)
> +		dev_err(hba->dev, "Failed to allocate work queue\n");
> 
>  	hba->clk_gating.is_enabled = true;
> 
> --
> 2.17.1
diff mbox series

Patch

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index e040f9dd9ff3..701b2da25f09 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -1791,6 +1791,8 @@  static void ufshcd_init_clk_gating(struct ufs_hba *hba)
 		 hba->host->host_no);
 	hba->clk_gating.clk_gating_workq = alloc_ordered_workqueue(wq_name,
 							   WQ_MEM_RECLAIM);
+	if (!hba->clk_gating.clk_gating_workq)
+		dev_err(hba->dev, "Failed to allocate work queue\n");
 
 	hba->clk_gating.is_enabled = true;