From 6e1476225ec02eeebc4b79f793506f80bc4bca8f Mon Sep 17 00:00:00 2001
From: Johan Hovold <johan+linaro@kernel.org>
Date: Mon, 6 Mar 2023 11:07:20 +0100
Subject: [PATCH] drm/msm: fix workqueue leak on bind errors
commit a75b49db6529b2af049eafd938fae888451c3685 upstream.
Make sure to destroy the workqueue also in case of early errors during
bind (e.g. a subcomponent failing to bind).
Since commit c3b790ea07a1 ("drm: Manage drm_mode_config_init with
drmm_") the mode config will be freed when the drm device is released
also when using the legacy interface, but add an explicit cleanup for
consistency and to facilitate backporting.
Fixes: 060530f1ea67 ("drm/msm: use componentised device support")
Cc: stable@vger.kernel.org # 3.15
Cc: Rob Clark <robdclark@gmail.com>
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/525093/
Link: https://lore.kernel.org/r/20230306100722.28485-9-johan+linaro@kernel.org
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/gpu/drm/msm/msm_drv.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/msm/msm_drv.c b/drivers/gpu/drm/msm/msm_drv.c
index 7b9aea1f252b0..69bc2e5b4aaeb 100644
--- a/drivers/gpu/drm/msm/msm_drv.c
+++ b/drivers/gpu/drm/msm/msm_drv.c
@@ -456,7 +456,7 @@ static int msm_drm_init(struct device *dev, const struct drm_driver *drv)
ret = msm_init_vram(ddev);
if (ret)
- goto err_put_dev;
+ goto err_cleanup_mode_config;
/* Bind all our sub-components: */
ret = component_bind_all(dev, ddev);
@@ -561,6 +561,9 @@ static int msm_drm_init(struct device *dev, const struct drm_driver *drv)
err_deinit_vram:
msm_deinit_vram(ddev);
+err_cleanup_mode_config:
+ drm_mode_config_cleanup(ddev);
+ destroy_workqueue(priv->wq);
err_put_dev:
drm_dev_put(ddev);
--
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