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* [PATCH] drivers/firmware: Add missing platform_device_put() in sysfb_create_simplefb
@ 2021-12-31  8:04 Miaoqian Lin
  2022-01-13 11:16 ` Javier Martinez Canillas
  0 siblings, 1 reply; 5+ messages in thread
From: Miaoqian Lin @ 2021-12-31  8:04 UTC (permalink / raw)
  Cc: linmq006, Thomas Zimmermann, Daniel Vetter, Borislav Petkov,
	Javier Martinez Canillas, Greg Kroah-Hartman, linux-kernel

Add the missing platform_device_put() before return from
sysfb_create_simplefb() in the error handling case.

Fixes: 8633ef8 ("drivers/firmware: consolidate EFI framebuffer setup for all arches")
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
---
 drivers/firmware/sysfb_simplefb.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/firmware/sysfb_simplefb.c b/drivers/firmware/sysfb_simplefb.c
index b86761904949..303a491e520d 100644
--- a/drivers/firmware/sysfb_simplefb.c
+++ b/drivers/firmware/sysfb_simplefb.c
@@ -113,12 +113,16 @@ __init int sysfb_create_simplefb(const struct screen_info *si,
 	sysfb_apply_efi_quirks(pd);
 
 	ret = platform_device_add_resources(pd, &res, 1);
-	if (ret)
+	if (ret) {
+		platform_device_put(pd);
 		return ret;
+	}
 
 	ret = platform_device_add_data(pd, mode, sizeof(*mode));
-	if (ret)
+	if (ret) {
+		platform_device_put(pd);
 		return ret;
+	}
 
 	return platform_device_add(pd);
 }
-- 
2.17.1


^ permalink raw reply related	[flat|nested] 5+ messages in thread

* Re: [PATCH] drivers/firmware: Add missing platform_device_put() in sysfb_create_simplefb
  2021-12-31  8:04 [PATCH] drivers/firmware: Add missing platform_device_put() in sysfb_create_simplefb Miaoqian Lin
@ 2022-01-13 11:16 ` Javier Martinez Canillas
  2022-01-16 12:16   ` [PATCH v2] " Miaoqian Lin
  0 siblings, 1 reply; 5+ messages in thread
From: Javier Martinez Canillas @ 2022-01-13 11:16 UTC (permalink / raw)
  To: Miaoqian Lin
  Cc: Thomas Zimmermann, Daniel Vetter, Borislav Petkov,
	Greg Kroah-Hartman, linux-kernel

Hello Miaoqian,

On 12/31/21 09:04, Miaoqian Lin wrote:
> Add the missing platform_device_put() before return from
> sysfb_create_simplefb() in the error handling case.
> 
> Fixes: 8633ef8 ("drivers/firmware: consolidate EFI framebuffer setup for all arches")
> Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
> ---

Thanks for the patch.

Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>

>  drivers/firmware/sysfb_simplefb.c | 8 ++++++--
>  1 file changed, 6 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/firmware/sysfb_simplefb.c b/drivers/firmware/sysfb_simplefb.c
> index b86761904949..303a491e520d 100644
> --- a/drivers/firmware/sysfb_simplefb.c
> +++ b/drivers/firmware/sysfb_simplefb.c
> @@ -113,12 +113,16 @@ __init int sysfb_create_simplefb(const struct screen_info *si,
>  	sysfb_apply_efi_quirks(pd);
>  
>  	ret = platform_device_add_resources(pd, &res, 1);
> -	if (ret)
> +	if (ret) {
> +		platform_device_put(pd);
>  		return ret;
> +	}
>  
>  	ret = platform_device_add_data(pd, mode, sizeof(*mode));
> -	if (ret)
> +	if (ret) {
> +		platform_device_put(pd);
>  		return ret;
> +	}
>

To avoid duplicating the error code logic twice, you could also do:

	if (ret)
		goto pdev_put;
  
>  	return platform_device_add(pd);

and then after this return statement:

pdev_put:
	platform_device_put(pd);
	return ret;

Best regards,
-- 
Javier Martinez Canillas
Linux Engineering
Red Hat


^ permalink raw reply	[flat|nested] 5+ messages in thread

* [PATCH v2] drivers/firmware: Add missing platform_device_put() in sysfb_create_simplefb
  2022-01-13 11:16 ` Javier Martinez Canillas
@ 2022-01-16 12:16   ` Miaoqian Lin
  2022-01-16 17:31     ` Javier Martinez Canillas
  0 siblings, 1 reply; 5+ messages in thread
From: Miaoqian Lin @ 2022-01-16 12:16 UTC (permalink / raw)
  To: javierm; +Cc: bp, daniel.vetter, gregkh, linmq006, linux-kernel, tzimmermann

Add the missing platform_device_put() before return from
sysfb_create_simplefb() in the error handling case.

Fixes: 8633ef8 ("drivers/firmware: consolidate EFI framebuffer setup for all arches")
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
---
Changes in v2:
- Use goto label to avoid duplicating the error code logic.
---
 drivers/firmware/sysfb_simplefb.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/firmware/sysfb_simplefb.c b/drivers/firmware/sysfb_simplefb.c
index b86761904949..46d776c29174 100644
--- a/drivers/firmware/sysfb_simplefb.c
+++ b/drivers/firmware/sysfb_simplefb.c
@@ -114,11 +114,15 @@ __init int sysfb_create_simplefb(const struct screen_info *si,
 
 	ret = platform_device_add_resources(pd, &res, 1);
 	if (ret)
-		return ret;
+		goto pdev_put;
 
 	ret = platform_device_add_data(pd, mode, sizeof(*mode));
 	if (ret)
-		return ret;
+		goto pdev_put;
 
 	return platform_device_add(pd);
+
+pdev_put:
+	platform_device_put(pd);
+	return ret;
 }
-- 
2.17.1


^ permalink raw reply related	[flat|nested] 5+ messages in thread

* Re: [PATCH v2] drivers/firmware: Add missing platform_device_put() in sysfb_create_simplefb
  2022-01-16 12:16   ` [PATCH v2] " Miaoqian Lin
@ 2022-01-16 17:31     ` Javier Martinez Canillas
  2022-02-04 15:41       ` Greg KH
  0 siblings, 1 reply; 5+ messages in thread
From: Javier Martinez Canillas @ 2022-01-16 17:31 UTC (permalink / raw)
  To: Miaoqian Lin; +Cc: bp, daniel.vetter, gregkh, linux-kernel, tzimmermann

On 1/16/22 13:16, Miaoqian Lin wrote:
> Add the missing platform_device_put() before return from
> sysfb_create_simplefb() in the error handling case.
> 
> Fixes: 8633ef8 ("drivers/firmware: consolidate EFI framebuffer setup for all arches")
> Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
> ---
> Changes in v2:
> - Use goto label to avoid duplicating the error code logic.
> ---
>  drivers/firmware/sysfb_simplefb.c | 8 ++++++--
>  1 file changed, 6 insertions(+), 2 deletions(-)
> 

Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>

Best regards,
-- 
Javier Martinez Canillas
Linux Engineering
Red Hat


^ permalink raw reply	[flat|nested] 5+ messages in thread

* Re: [PATCH v2] drivers/firmware: Add missing platform_device_put() in sysfb_create_simplefb
  2022-01-16 17:31     ` Javier Martinez Canillas
@ 2022-02-04 15:41       ` Greg KH
  0 siblings, 0 replies; 5+ messages in thread
From: Greg KH @ 2022-02-04 15:41 UTC (permalink / raw)
  To: Javier Martinez Canillas
  Cc: Miaoqian Lin, bp, daniel.vetter, linux-kernel, tzimmermann

On Sun, Jan 16, 2022 at 06:31:09PM +0100, Javier Martinez Canillas wrote:
> On 1/16/22 13:16, Miaoqian Lin wrote:
> > Add the missing platform_device_put() before return from
> > sysfb_create_simplefb() in the error handling case.
> > 
> > Fixes: 8633ef8 ("drivers/firmware: consolidate EFI framebuffer setup for all arches")
> > Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
> > ---
> > Changes in v2:
> > - Use goto label to avoid duplicating the error code logic.
> > ---
> >  drivers/firmware/sysfb_simplefb.c | 8 ++++++--
> >  1 file changed, 6 insertions(+), 2 deletions(-)
> > 
> 
> Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>

Does not apply to my tree :(

^ permalink raw reply	[flat|nested] 5+ messages in thread

end of thread, other threads:[~2022-02-04 15:41 UTC | newest]

Thread overview: 5+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2021-12-31  8:04 [PATCH] drivers/firmware: Add missing platform_device_put() in sysfb_create_simplefb Miaoqian Lin
2022-01-13 11:16 ` Javier Martinez Canillas
2022-01-16 12:16   ` [PATCH v2] " Miaoqian Lin
2022-01-16 17:31     ` Javier Martinez Canillas
2022-02-04 15:41       ` Greg KH

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