This is a note to let you know that I've just added the patch titled
drm/stm: Fix an error handling path in stm_drm_platform_probe()
to the 5.15-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
drm-stm-fix-an-error-handling-path-in-stm_drm_platfo.patch
and it can be found in the queue-5.15 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit fbf3bc6a51b56ddcfb37053f785cd7cfdb20d9b3
Author: Christophe JAILLET <christophe.jaillet@xxxxxxxxxx>
Date: Sat Jan 6 17:54:32 2024 +0100
drm/stm: Fix an error handling path in stm_drm_platform_probe()
[ Upstream commit ce7c90bfda2656418c69ba0dd8f8a7536b8928d4 ]
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@xxxxxxxxxx>
Acked-by: Raphael Gallais-Pou <raphael.gallais-pou@xxxxxxxxxxx>
Link: https://patchwork.freedesktop.org/patch/msgid/20fff7f853f20a48a96db8ff186124470ec4d976.1704560028.git.christophe.jaillet@xxxxxxxxxx
Signed-off-by: Raphael Gallais-Pou <raphael.gallais-pou@xxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/gpu/drm/stm/drv.c b/drivers/gpu/drm/stm/drv.c
index 222869b232ae0..d8f4d1150913b 100644
--- a/drivers/gpu/drm/stm/drv.c
+++ b/drivers/gpu/drm/stm/drv.c
@@ -195,12 +195,14 @@ 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);
