4.19-stable review patch. If anyone has any objections, please let me know.
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From: Christophe JAILLET christophe.jaillet@wanadoo.fr
[ 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@wanadoo.fr Acked-by: Raphael Gallais-Pou raphael.gallais-pou@foss.st.com Link: https://patchwork.freedesktop.org/patch/msgid/20fff7f853f20a48a96db8ff186124... Signed-off-by: Raphael Gallais-Pou raphael.gallais-pou@foss.st.com Signed-off-by: Sasha Levin sashal@kernel.org --- 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 f2021b23554d3..dade0ecdfc1a1 100644 --- a/drivers/gpu/drm/stm/drv.c +++ b/drivers/gpu/drm/stm/drv.c @@ -152,10 +152,12 @@ static int stm_drm_platform_probe(struct platform_device *pdev)
ret = drm_dev_register(ddev, 0); if (ret) - goto err_put; + goto err_unload;
return 0;
+err_unload: + drv_unload(ddev); err_put: drm_dev_put(ddev);