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From: Luca Ceresoli <luca.ceresoli@bootlin.com>
To: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>,
	 Maxime Ripard <mripard@kernel.org>,
	Thomas Zimmermann <tzimmermann@suse.de>,
	 Andrzej Hajda <andrzej.hajda@intel.com>,
	 Neil Armstrong <neil.armstrong@linaro.org>,
	Robert Foss <rfoss@kernel.org>,
	 Laurent Pinchart <Laurent.pinchart@ideasonboard.com>,
	 Jonas Karlman <jonas@kwiboo.se>,
	Jernej Skrabec <jernej.skrabec@gmail.com>,
	 David Airlie <airlied@gmail.com>,
	Simona Vetter <simona@ffwll.ch>
Cc: Hui Pu <Hui.Pu@gehealthcare.com>,
	 Thomas Petazzoni <thomas.petazzoni@bootlin.com>,
	 dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org,
	 Luca Ceresoli <luca.ceresoli@bootlin.com>
Subject: [PATCH 3/3] drm/bridge: display-connector: put the bridge obtained by drm_bridge_get_prev_bridge()
Date: Wed, 09 Jul 2025 17:59:39 +0200	[thread overview]
Message-ID: <20250709-drm-bridge-alloc-getput-drm_bridge_get_prev_bridge-v1-3-34ba6f395aaa@bootlin.com> (raw)
In-Reply-To: <20250709-drm-bridge-alloc-getput-drm_bridge_get_prev_bridge-v1-0-34ba6f395aaa@bootlin.com>

The bridge returned by drm_bridge_get_prev_bridge() is refcounted. Put it
when done.

To keep the code clean and future-proof use a scope-based free.

Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
---
 drivers/gpu/drm/bridge/display-connector.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/bridge/display-connector.c b/drivers/gpu/drm/bridge/display-connector.c
index badd2c7f91a186e9a47c5a4ddc870d269f3798ab..b33f67d1ce49a8bd0b0ac3f13d15d332d9c95cf1 100644
--- a/drivers/gpu/drm/bridge/display-connector.c
+++ b/drivers/gpu/drm/bridge/display-connector.c
@@ -103,7 +103,7 @@ static u32 *display_connector_get_output_bus_fmts(struct drm_bridge *bridge,
 					struct drm_connector_state *conn_state,
 					unsigned int *num_output_fmts)
 {
-	struct drm_bridge *prev_bridge = drm_bridge_get_prev_bridge(bridge);
+	struct drm_bridge *prev_bridge __free(drm_bridge_put) = drm_bridge_get_prev_bridge(bridge);
 	struct drm_bridge_state *prev_bridge_state;
 
 	if (!prev_bridge || !prev_bridge->funcs->atomic_get_output_bus_fmts) {
@@ -146,7 +146,7 @@ static u32 *display_connector_get_input_bus_fmts(struct drm_bridge *bridge,
 					u32 output_fmt,
 					unsigned int *num_input_fmts)
 {
-	struct drm_bridge *prev_bridge = drm_bridge_get_prev_bridge(bridge);
+	struct drm_bridge *prev_bridge __free(drm_bridge_put) = drm_bridge_get_prev_bridge(bridge);
 	struct drm_bridge_state *prev_bridge_state;
 
 	if (!prev_bridge || !prev_bridge->funcs->atomic_get_input_bus_fmts) {

-- 
2.50.0


  parent reply	other threads:[~2025-07-09 16:00 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-07-09 15:59 [PATCH 0/3] drm/bridge: get/put the bridge returned by drm_bridge_get_prev_bridge() Luca Ceresoli
2025-07-09 15:59 ` [PATCH 1/3] drm/bridge: get " Luca Ceresoli
2025-07-10  7:54   ` Maxime Ripard
2025-07-09 15:59 ` [PATCH 2/3] drm/bridge: select_bus_fmt_recursive(): put the bridge obtained " Luca Ceresoli
2025-07-10  7:54   ` Maxime Ripard
2025-07-09 15:59 ` Luca Ceresoli [this message]
2025-07-10  7:54   ` [PATCH 3/3] drm/bridge: display-connector: " Maxime Ripard
2025-07-23 11:10 ` [PATCH 0/3] drm/bridge: get/put the bridge returned " Luca Ceresoli

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