This is a note to let you know that I've just added the patch titled
drm/msm: fix drm device leak on bind errors
to the 6.3-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-drm-device-leak-on-bind-errors.patch
and it can be found in the queue-6.3 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 214b09db61978497df24efcb3959616814bca46b Mon Sep 17 00:00:00 2001
From: Johan Hovold <johan+linaro@xxxxxxxxxx>
Date: Mon, 6 Mar 2023 11:07:17 +0100
Subject: drm/msm: fix drm device leak on bind errors
From: Johan Hovold <johan+linaro@xxxxxxxxxx>
commit 214b09db61978497df24efcb3959616814bca46b upstream.
Make sure to free the DRM device also in case of early errors during
bind().
Fixes: 2027e5b3413d ("drm/msm: Initialize MDSS irq domain at probe time")
Cc: stable@xxxxxxxxxxxxxxx # 5.17
Cc: Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxx>
Signed-off-by: Johan Hovold <johan+linaro@xxxxxxxxxx>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxx>
Patchwork: https://patchwork.freedesktop.org/patch/525097/
Link: https://lore.kernel.org/r/20230306100722.28485-6-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 | 10 ++++++++--
1 file changed, 8 insertions(+), 2 deletions(-)
--- a/drivers/gpu/drm/msm/msm_drv.c
+++ b/drivers/gpu/drm/msm/msm_drv.c
@@ -444,12 +444,12 @@ static int msm_drm_init(struct device *d
ret = msm_init_vram(ddev);
if (ret)
- return ret;
+ goto err_put_dev;
/* Bind all our sub-components: */
ret = component_bind_all(dev, ddev);
if (ret)
- return ret;
+ goto err_put_dev;
dma_set_max_seg_size(dev, UINT_MAX);
@@ -544,6 +544,12 @@ static int msm_drm_init(struct device *d
err_msm_uninit:
msm_drm_uninit(dev);
+
+ return ret;
+
+err_put_dev:
+ drm_dev_put(ddev);
+
return ret;
}
Patches currently in stable-queue which might be from johan+linaro@xxxxxxxxxx are
queue-6.3/drm-msm-fix-vram-leak-on-bind-errors.patch
queue-6.3/drm-msm-adreno-fix-runtime-pm-imbalance-at-gpu-load.patch
queue-6.3/drm-msm-fix-workqueue-leak-on-bind-errors.patch
queue-6.3/drm-msm-fix-drm-device-leak-on-bind-errors.patch
queue-6.3/drm-msm-fix-missing-wq-allocation-error-handling.patch
queue-6.3/drm-msm-fix-null-deref-on-irq-uninstall.patch
queue-6.3/usb-dwc3-gadget-drop-dead-hibernation-code.patch
queue-6.3/drm-msm-fix-null-deref-on-snapshot-tear-down.patch
