* [PATCH] drm/stm: Fix an error handling path in 'stm_drm_platform_probe()'
@ 2020-05-01 12:55 Christophe JAILLET
0 siblings, 0 replies; 3+ messages in thread
From: Christophe JAILLET @ 2020-05-01 12:55 UTC (permalink / raw)
To: yannick.fertre, philippe.cornu, benjamin.gaignard,
vincent.abriou, airlied, daniel, mcoquelin.stm32,
alexandre.torgue, eric, narmstrong
Cc: dri-devel, linux-stm32, linux-arm-kernel, linux-kernel,
kernel-janitors, Christophe JAILLET
If 'drm_dev_register()' fails, a call to 'drv_load()' must be undone, as
already done in the remove function.
Fixes: b759012c5fa7 ("drm/stm: Add STM32 LTDC driver")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
---
drivers/gpu/drm/stm/drv.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/stm/drv.c b/drivers/gpu/drm/stm/drv.c
index ea9fcbdc68b3..9a66e350abd5 100644
--- a/drivers/gpu/drm/stm/drv.c
+++ b/drivers/gpu/drm/stm/drv.c
@@ -206,12 +206,14 @@ static int stm_drm_platform_probe(struct platform_device *pdev)
ret = drm_dev_register(ddev, 0);
if (ret)
- goto err_put;
+ goto err_unload;
drm_fbdev_generic_setup(ddev, 16);
return 0;
+err_unload:
+ drv_unload(ddev);
err_put:
drm_dev_put(ddev);
--
2.25.1
^ permalink raw reply related [flat|nested] 3+ messages in thread
* Re: [PATCH] drm/stm: Fix an error handling path in stm_drm_platform_probe()
2024-01-06 16:54 [PATCH] drm/stm: Fix an error handling path in stm_drm_platform_probe() Christophe JAILLET
@ 2024-01-10 9:54 ` Raphael Gallais-Pou
0 siblings, 0 replies; 3+ messages in thread
From: Raphael Gallais-Pou @ 2024-01-10 9:54 UTC (permalink / raw)
To: Christophe JAILLET, Yannick Fertre, Philippe Cornu,
Maarten Lankhorst, Maxime Ripard, Thomas Zimmermann,
David Airlie, Daniel Vetter, Maxime Coquelin, Alexandre Torgue,
Eric Anholt, Neil Armstrong
Cc: linux-kernel, kernel-janitors, Yannick Fertre, dri-devel,
linux-stm32, linux-arm-kernel
Hi Christophe,
On 1/6/24 17:54, Christophe JAILLET wrote:
> If drm_dev_register() fails, a call to drv_load() must be undone, as
> already done in the remove function.
>
> Fixes: b759012c5fa7 ("drm/stm: Add STM32 LTDC driver")
> Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
> ---
> This was already sent a few years ago in [1] but it got no response.
> Since, there has been some activity on this driver, so I send it again.
>
> Note that it is untested.
>
> [1]: https://lore.kernel.org/all/20200501125511.132029-1-christophe.jaillet@wanadoo.fr/
> ---
> drivers/gpu/drm/stm/drv.c | 4 +++-
> 1 file changed, 3 insertions(+), 1 deletion(-)
>
I tested it against stm32mp157c-dk2.dts.
Thanks for your submission.
Acked-by: Raphael Gallais-Pou <raphael.gallais-pou@foss.st.com>
Regards,
Raphaël Gallais-Pou
^ permalink raw reply [flat|nested] 3+ messages in thread
* [PATCH] drm/stm: Fix an error handling path in stm_drm_platform_probe()
@ 2024-01-06 16:54 Christophe JAILLET
2024-01-10 9:54 ` Raphael Gallais-Pou
0 siblings, 1 reply; 3+ messages in thread
From: Christophe JAILLET @ 2024-01-06 16:54 UTC (permalink / raw)
To: Yannick Fertre, Raphael Gallais-Pou, Philippe Cornu,
Maarten Lankhorst, Maxime Ripard, Thomas Zimmermann,
David Airlie, Daniel Vetter, Maxime Coquelin, Alexandre Torgue,
Eric Anholt, Neil Armstrong
Cc: linux-kernel, kernel-janitors, Christophe JAILLET,
Yannick Fertre, dri-devel, linux-stm32, linux-arm-kernel
If drm_dev_register() fails, a call to drv_load() must be undone, as
already done in the remove function.
Fixes: b759012c5fa7 ("drm/stm: Add STM32 LTDC driver")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
---
This was already sent a few years ago in [1] but it got no response.
Since, there has been some activity on this driver, so I send it again.
Note that it is untested.
[1]: https://lore.kernel.org/all/20200501125511.132029-1-christophe.jaillet@wanadoo.fr/
---
drivers/gpu/drm/stm/drv.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/stm/drv.c b/drivers/gpu/drm/stm/drv.c
index e8523abef27a..4d2db079ad4f 100644
--- a/drivers/gpu/drm/stm/drv.c
+++ b/drivers/gpu/drm/stm/drv.c
@@ -203,12 +203,14 @@ static int stm_drm_platform_probe(struct platform_device *pdev)
ret = drm_dev_register(ddev, 0);
if (ret)
- goto err_put;
+ goto err_unload;
drm_fbdev_dma_setup(ddev, 16);
return 0;
+err_unload:
+ drv_unload(ddev);
err_put:
drm_dev_put(ddev);
--
2.34.1
^ permalink raw reply related [flat|nested] 3+ messages in thread
end of thread, other threads:[~2024-01-10 9:55 UTC | newest]
Thread overview: 3+ messages (download: mbox.gz / follow: Atom feed)
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2020-05-01 12:55 [PATCH] drm/stm: Fix an error handling path in 'stm_drm_platform_probe()' Christophe JAILLET
2024-01-06 16:54 [PATCH] drm/stm: Fix an error handling path in stm_drm_platform_probe() Christophe JAILLET
2024-01-10 9:54 ` Raphael Gallais-Pou
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