This is a note to let you know that I've just added the patch titled
drm/tilcdc: Fix irq free on unload
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-tilcdc-fix-irq-free-on-unload.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 6155e7014e357a5db0391148183a4ab936f8935d
Author: Tomi Valkeinen <tomi.valkeinen@xxxxxxxxxxxxxxxx>
Date: Tue Sep 19 10:12:50 2023 +0300
drm/tilcdc: Fix irq free on unload
[ Upstream commit 38360bf96d816e175bc602c4ee76953cd303b71d ]
The driver only frees the reserved irq if priv->irq_enabled is set to
true. However, the driver mistakenly sets priv->irq_enabled to false,
instead of true, in tilcdc_irq_install(), and thus the driver never
frees the irq, causing issues on loading the driver a second time.
Fixes: b6366814fa77 ("drm/tilcdc: Convert to Linux IRQ interfaces")
Cc: Thomas Zimmermann <tzimmermann@xxxxxxx>
Reviewed-by: Aradhya Bhatia <a-bhatia1@xxxxxx>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@xxxxxxxxxxxxxxxx>
Link: https://patchwork.freedesktop.org/patch/msgid/20230919-lcdc-v1-1-ba60da7421e1@xxxxxxxxxxxxxxxx
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/gpu/drm/tilcdc/tilcdc_drv.c b/drivers/gpu/drm/tilcdc/tilcdc_drv.c
index 6b03f89a98d4..6924488274dd 100644
--- a/drivers/gpu/drm/tilcdc/tilcdc_drv.c
+++ b/drivers/gpu/drm/tilcdc/tilcdc_drv.c
@@ -140,7 +140,7 @@ static int tilcdc_irq_install(struct drm_device *dev, unsigned int irq)
if (ret)
return ret;
- priv->irq_enabled = false;
+ priv->irq_enabled = true;
return 0;
}
