This is a note to let you know that I've just added the patch titled
drm/msm/dsi: use msm_gem_kernel_put to free TX buffer
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-msm-dsi-use-msm_gem_kernel_put-to-free-tx-buffer.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 188d674b81875a5a1bcca02e0cbf34c92729e588
Author: Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxx>
Date: Thu Oct 12 04:29:08 2023 +0300
drm/msm/dsi: use msm_gem_kernel_put to free TX buffer
[ Upstream commit 69b321b2c3df4f7e51a9de587e41f324b0b717b0 ]
Use exiting function to free the allocated GEM object instead of
open-coding it. This has a bonus of internally calling
msm_gem_put_vaddr() to compensate for msm_gem_get_vaddr() in
msm_get_kernel_new().
Fixes: 1e29dff00400 ("drm/msm: Add a common function to free kernel buffer objects")
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxx>
Reviewed-by: Abhinav Kumar <quic_abhinavk@xxxxxxxxxxx>
Patchwork: https://patchwork.freedesktop.org/patch/562239/
Signed-off-by: Rob Clark <robdclark@xxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/gpu/drm/msm/dsi/dsi_host.c b/drivers/gpu/drm/msm/dsi/dsi_host.c
index 85dec6167e0b6..8d0612caf6c21 100644
--- a/drivers/gpu/drm/msm/dsi/dsi_host.c
+++ b/drivers/gpu/drm/msm/dsi/dsi_host.c
@@ -1154,8 +1154,7 @@ static void dsi_tx_buf_free(struct msm_dsi_host *msm_host)
priv = dev->dev_private;
if (msm_host->tx_gem_obj) {
- msm_gem_unpin_iova(msm_host->tx_gem_obj, priv->kms->aspace);
- drm_gem_object_put(msm_host->tx_gem_obj);
+ msm_gem_kernel_put(msm_host->tx_gem_obj, priv->kms->aspace);
msm_host->tx_gem_obj = NULL;
}
