This is a note to let you know that I've just added the patch titled
drm/kmb: Fix error return code in kmb_hw_init()
to the 5.12-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-kmb-fix-error-return-code-in-kmb_hw_init.patch
and it can be found in the queue-5.12 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit fca9f5687ed65382cc3bf95ed1a1b60e2875db17
Author: Zhen Lei <thunder.leizhen@xxxxxxxxxx>
Date: Thu May 13 21:46:38 2021 +0800
drm/kmb: Fix error return code in kmb_hw_init()
[ Upstream commit 6fd8f323b3e4e5290d02174559308669507c00dd ]
When the call to platform_get_irq() to obtain the IRQ of the lcd fails, the
returned error code should be propagated. However, we currently do not
explicitly assign this error code to 'ret'. As a result, 0 was incorrectly
returned.
Fixes: 7f7b96a8a0a1 ("drm/kmb: Add support for KeemBay Display")
Reported-by: Hulk Robot <hulkci@xxxxxxxxxx>
Signed-off-by: Zhen Lei <thunder.leizhen@xxxxxxxxxx>
Signed-off-by: Anitha Chrisanthus <anitha.chrisanthus@xxxxxxxxx>
Link: https://patchwork.freedesktop.org/patch/msgid/20210513134639.6541-1-thunder.leizhen@xxxxxxxxxx
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/gpu/drm/kmb/kmb_drv.c b/drivers/gpu/drm/kmb/kmb_drv.c
index f64e06e1067d..96ea1a2c11dd 100644
--- a/drivers/gpu/drm/kmb/kmb_drv.c
+++ b/drivers/gpu/drm/kmb/kmb_drv.c
@@ -137,6 +137,7 @@ static int kmb_hw_init(struct drm_device *drm, unsigned long flags)
/* Allocate LCD interrupt resources */
irq_lcd = platform_get_irq(pdev, 0);
if (irq_lcd < 0) {
+ ret = irq_lcd;
drm_err(&kmb->drm, "irq_lcd not found");
goto setup_fail;
}
