This is a note to let you know that I've just added the patch titled
drm/msm: fix missing wq allocation error handling
to the 6.2-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-msm-fix-missing-wq-allocation-error-handling.patch
and it can be found in the queue-6.2 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From ca090c837b430752038b24e56dd182010d77f6f6 Mon Sep 17 00:00:00 2001
From: Johan Hovold <johan+linaro@xxxxxxxxxx>
Date: Mon, 6 Mar 2023 11:07:19 +0100
Subject: drm/msm: fix missing wq allocation error handling
From: Johan Hovold <johan+linaro@xxxxxxxxxx>
commit ca090c837b430752038b24e56dd182010d77f6f6 upstream.
Add the missing sanity check to handle workqueue allocation failures.
Fixes: c8afe684c95c ("drm/msm: basic KMS driver for snapdragon")
Cc: stable@xxxxxxxxxxxxxxx # 3.12
Cc: Rob Clark <robdclark@xxxxxxxxx>
Signed-off-by: Johan Hovold <johan+linaro@xxxxxxxxxx>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxx>
Patchwork: https://patchwork.freedesktop.org/patch/525102/
Link: https://lore.kernel.org/r/20230306100722.28485-8-johan+linaro@xxxxxxxxxx
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/gpu/drm/msm/msm_drv.c | 4 ++++
1 file changed, 4 insertions(+)
--- a/drivers/gpu/drm/msm/msm_drv.c
+++ b/drivers/gpu/drm/msm/msm_drv.c
@@ -431,6 +431,10 @@ static int msm_drm_init(struct device *d
priv->dev = ddev;
priv->wq = alloc_ordered_workqueue("msm", 0);
+ if (!priv->wq) {
+ ret = -ENOMEM;
+ goto err_put_dev;
+ }
INIT_LIST_HEAD(&priv->objects);
mutex_init(&priv->obj_lock);
Patches currently in stable-queue which might be from johan+linaro@xxxxxxxxxx are
queue-6.2/drm-msm-fix-vram-leak-on-bind-errors.patch
queue-6.2/drm-msm-adreno-fix-runtime-pm-imbalance-at-gpu-load.patch
queue-6.2/drm-msm-fix-workqueue-leak-on-bind-errors.patch
queue-6.2/drm-msm-fix-drm-device-leak-on-bind-errors.patch
queue-6.2/drm-msm-fix-missing-wq-allocation-error-handling.patch
queue-6.2/drm-msm-fix-null-deref-on-irq-uninstall.patch
queue-6.2/usb-dwc3-gadget-drop-dead-hibernation-code.patch
queue-6.2/drm-msm-fix-null-deref-on-snapshot-tear-down.patch
