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authorLyude Paul <lyude@redhat.com>2021-02-20 00:53:08 +0300
committerLyude Paul <lyude@redhat.com>2021-03-23 21:19:33 +0300
commitc42712c6e9bea042ea9696713024af7417f5ce18 (patch)
treec1976fbb7da8c0a325da4982f4640ea9d1a39281 /drivers/gpu/drm/bridge
parentacf5ff297ec60ae4205927fcc860325e638e42ac (diff)
downloadlinux-c42712c6e9bea042ea9696713024af7417f5ce18.tar.xz
drm/bridge/analogix/anx6345: Cleanup on errors in anx6345_bridge_attach()
Another drive-by fix I found when fixing DP AUX adapter across the kernel tree - make sure we don't leak resources (and by proxy-AUX adapters) on failures in anx6345_bridge_attach() by unrolling on errors. Signed-off-by: Lyude Paul <lyude@redhat.com> Reviewed-by: Robert Foss <robert.foss@linaro.org> Link: https://patchwork.freedesktop.org/patch/msgid/20210219215326.2227596-13-lyude@redhat.com
Diffstat (limited to 'drivers/gpu/drm/bridge')
-rw-r--r--drivers/gpu/drm/bridge/analogix/analogix-anx6345.c11
1 files changed, 8 insertions, 3 deletions
diff --git a/drivers/gpu/drm/bridge/analogix/analogix-anx6345.c b/drivers/gpu/drm/bridge/analogix/analogix-anx6345.c
index 6258f16da0e8..aa6cda458eb9 100644
--- a/drivers/gpu/drm/bridge/analogix/analogix-anx6345.c
+++ b/drivers/gpu/drm/bridge/analogix/analogix-anx6345.c
@@ -550,7 +550,7 @@ static int anx6345_bridge_attach(struct drm_bridge *bridge,
DRM_MODE_CONNECTOR_eDP);
if (err) {
DRM_ERROR("Failed to initialize connector: %d\n", err);
- return err;
+ goto aux_unregister;
}
drm_connector_helper_add(&anx6345->connector,
@@ -562,16 +562,21 @@ static int anx6345_bridge_attach(struct drm_bridge *bridge,
bridge->encoder);
if (err) {
DRM_ERROR("Failed to link up connector to encoder: %d\n", err);
- return err;
+ goto connector_cleanup;
}
err = drm_connector_register(&anx6345->connector);
if (err) {
DRM_ERROR("Failed to register connector: %d\n", err);
- return err;
+ goto connector_cleanup;
}
return 0;
+connector_cleanup:
+ drm_connector_cleanup(&anx6345->connector);
+aux_unregister:
+ drm_dp_aux_unregister(&anx6345->aux);
+ return err;
}
static void anx6345_bridge_detach(struct drm_bridge *bridge)