2023-12-15 00:45:12

by Chanwoo Lee

[permalink] [raw]
Subject: [PATCH v3] scsi: ufs: qcom: Return ufs_qcom_clk_scale_*() errors in ufs_qcom_clk_scale_notify()

From: ChanWoo Lee <[email protected]>

In commit 031312dbc695 ("scsi: ufs: ufs-qcom: Remove unnecessary goto statements")
the error handling was accidentally changed, resulting in the error of
ufs_qcom_clk_scale_*() calls not being returned.

This is the case I checked.
* ufs_qcom_clk_scale_notify -> 'ufs_qcom_clk_scale_up_/down_pre_change' error -> return 0;

Let's make sure those errors are properly returned.

Fixes: 031312dbc695 ("scsi: ufs: ufs-qcom: Remove unnecessary goto statements")
Reviewed-by: Manivannan Sadhasivam <[email protected]>
Signed-off-by: ChanWoo Lee <[email protected]>
---
* v2->v3: Change title and description
v2 :
https://patchwork.kernel.org/project/linux-scsi/patch/[email protected]/

* v1->v2: Remove things already in progress
v1 :
https://patchwork.kernel.org/project/linux-scsi/patch/[email protected]/
---
---
drivers/ufs/host/ufs-qcom.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/ufs/host/ufs-qcom.c b/drivers/ufs/host/ufs-qcom.c
index 96cb8b5b4e66..17e24270477d 100644
--- a/drivers/ufs/host/ufs-qcom.c
+++ b/drivers/ufs/host/ufs-qcom.c
@@ -1516,9 +1516,11 @@ static int ufs_qcom_clk_scale_notify(struct ufs_hba *hba,
err = ufs_qcom_clk_scale_up_pre_change(hba);
else
err = ufs_qcom_clk_scale_down_pre_change(hba);
- if (err)
- ufshcd_uic_hibern8_exit(hba);

+ if (err) {
+ ufshcd_uic_hibern8_exit(hba);
+ return err;
+ }
} else {
if (scale_up)
err = ufs_qcom_clk_scale_up_post_change(hba);
--
2.29.0



2023-12-15 15:15:38

by Andrew Halaney

[permalink] [raw]
Subject: Re: [PATCH v3] scsi: ufs: qcom: Return ufs_qcom_clk_scale_*() errors in ufs_qcom_clk_scale_notify()

On Fri, Dec 15, 2023 at 09:38:12AM +0900, Chanwoo Lee wrote:
> From: ChanWoo Lee <[email protected]>
>
> In commit 031312dbc695 ("scsi: ufs: ufs-qcom: Remove unnecessary goto statements")
> the error handling was accidentally changed, resulting in the error of
> ufs_qcom_clk_scale_*() calls not being returned.
>
> This is the case I checked.
> * ufs_qcom_clk_scale_notify -> 'ufs_qcom_clk_scale_up_/down_pre_change' error -> return 0;
>
> Let's make sure those errors are properly returned.
>
> Fixes: 031312dbc695 ("scsi: ufs: ufs-qcom: Remove unnecessary goto statements")

Thanks for the changes. Looks good to me now:

Reviewed-by: Andrew Halaney <[email protected]>

> Reviewed-by: Manivannan Sadhasivam <[email protected]>
> Signed-off-by: ChanWoo Lee <[email protected]>
> ---
> * v2->v3: Change title and description
> v2 :
> https://patchwork.kernel.org/project/linux-scsi/patch/[email protected]/
>
> * v1->v2: Remove things already in progress
> v1 :
> https://patchwork.kernel.org/project/linux-scsi/patch/[email protected]/
> ---
> ---
> drivers/ufs/host/ufs-qcom.c | 6 ++++--
> 1 file changed, 4 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/ufs/host/ufs-qcom.c b/drivers/ufs/host/ufs-qcom.c
> index 96cb8b5b4e66..17e24270477d 100644
> --- a/drivers/ufs/host/ufs-qcom.c
> +++ b/drivers/ufs/host/ufs-qcom.c
> @@ -1516,9 +1516,11 @@ static int ufs_qcom_clk_scale_notify(struct ufs_hba *hba,
> err = ufs_qcom_clk_scale_up_pre_change(hba);
> else
> err = ufs_qcom_clk_scale_down_pre_change(hba);
> - if (err)
> - ufshcd_uic_hibern8_exit(hba);
>
> + if (err) {
> + ufshcd_uic_hibern8_exit(hba);
> + return err;
> + }
> } else {
> if (scale_up)
> err = ufs_qcom_clk_scale_up_post_change(hba);
> --
> 2.29.0
>


2023-12-19 02:21:55

by Martin K. Petersen

[permalink] [raw]
Subject: Re: [PATCH v3] scsi: ufs: qcom: Return ufs_qcom_clk_scale_*() errors in ufs_qcom_clk_scale_notify()

On Fri, 15 Dec 2023 09:38:12 +0900, Chanwoo Lee wrote:

> In commit 031312dbc695 ("scsi: ufs: ufs-qcom: Remove unnecessary goto statements")
> the error handling was accidentally changed, resulting in the error of
> ufs_qcom_clk_scale_*() calls not being returned.
>
> This is the case I checked.
> * ufs_qcom_clk_scale_notify -> 'ufs_qcom_clk_scale_up_/down_pre_change' error -> return 0;
>
> [...]

Applied to 6.7/scsi-fixes, thanks!

[1/1] scsi: ufs: qcom: Return ufs_qcom_clk_scale_*() errors in ufs_qcom_clk_scale_notify()
https://git.kernel.org/mkp/scsi/c/9264fd61e628

--
Martin K. Petersen Oracle Linux Engineering