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authorChristophe JAILLET <christophe.jaillet@wanadoo.fr>2023-09-02 19:34:31 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2023-11-20 10:30:11 +0100
commit64d990086065370d985b312776df068dc4563c2c (patch)
tree4069b470d5ecb4c811724ffb795afbb10e8081c1 /drivers/gpu
parentddc42881f170f1f518496f5a70447501335fc783 (diff)
drm/rockchip: cdn-dp: Fix some error handling paths in cdn_dp_probe()
[ Upstream commit 44b968d0d0868b7a9b7a5c64464ada464ff4d532 ] cdn_dp_audio_codec_init() can fail. So add some error handling. If component_add() fails, the previous cdn_dp_audio_codec_init() call should be undone, as already done in the remove function. Fixes: 88582f564692 ("drm/rockchip: cdn-dp: Don't unregister audio dev when unbinding") Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Signed-off-by: Heiko Stuebner <heiko@sntech.de> Link: https://patchwork.freedesktop.org/patch/msgid/8494a41602fadb7439630921a9779640698f2f9f.1693676045.git.christophe.jaillet@wanadoo.fr Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/gpu')
-rw-r--r--drivers/gpu/drm/rockchip/cdn-dp-core.c15
1 files changed, 13 insertions, 2 deletions
diff --git a/drivers/gpu/drm/rockchip/cdn-dp-core.c b/drivers/gpu/drm/rockchip/cdn-dp-core.c
index 2ea672f4420d..df2656471e31 100644
--- a/drivers/gpu/drm/rockchip/cdn-dp-core.c
+++ b/drivers/gpu/drm/rockchip/cdn-dp-core.c
@@ -1147,6 +1147,7 @@ static int cdn_dp_probe(struct platform_device *pdev)
struct cdn_dp_device *dp;
struct extcon_dev *extcon;
struct phy *phy;
+ int ret;
int i;
dp = devm_kzalloc(dev, sizeof(*dp), GFP_KERNEL);
@@ -1187,9 +1188,19 @@ static int cdn_dp_probe(struct platform_device *pdev)
mutex_init(&dp->lock);
dev_set_drvdata(dev, dp);
- cdn_dp_audio_codec_init(dp, dev);
+ ret = cdn_dp_audio_codec_init(dp, dev);
+ if (ret)
+ return ret;
+
+ ret = component_add(dev, &cdn_dp_component_ops);
+ if (ret)
+ goto err_audio_deinit;
- return component_add(dev, &cdn_dp_component_ops);
+ return 0;
+
+err_audio_deinit:
+ platform_device_unregister(dp->audio_pdev);
+ return ret;
}
static int cdn_dp_remove(struct platform_device *pdev)