[PATCH v6 25/26] drm/bridge: ti-sn65dsi83: use dynamic lifetime management

[Luca Ceresoli]

Allow this bridge to be removable without dangling pointers and
use-after-free, together with proper use of drm_bridge_get() and _put() by
consumers.

Signed-off-by: Luca Ceresoli <luca.ceresoli@xxxxxxxxxxx>

---

Changed in v6:
 - Update to use devm_drm_bridge_alloc(), remove .destroy

This patch was added in v5.
---
 drivers/gpu/drm/bridge/ti-sn65dsi83.c | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/bridge/ti-sn65dsi83.c b/drivers/gpu/drm/bridge/ti-sn65dsi83.c
index e683b62d340564978bda37698f2cb1bffd961df5..14e991e999db857725f4c46de3e4c4e4861c3c8a 100644
--- a/drivers/gpu/drm/bridge/ti-sn65dsi83.c
+++ b/drivers/gpu/drm/bridge/ti-sn65dsi83.c
@@ -941,9 +941,9 @@ static int sn65dsi83_probe(struct i2c_client *client)
 	struct sn65dsi83 *ctx;
 	int ret;
 
-	ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL);
-	if (!ctx)
-		return -ENOMEM;
+	ctx = devm_drm_bridge_alloc(dev, struct sn65dsi83, bridge, &sn65dsi83_funcs);
+	if (IS_ERR(ctx))
+		return PTR_ERR(ctx);
 
 	ctx->dev = dev;
 	INIT_WORK(&ctx->reset_work, sn65dsi83_reset_work);
@@ -983,7 +983,6 @@ static int sn65dsi83_probe(struct i2c_client *client)
 	dev_set_drvdata(dev, ctx);
 	i2c_set_clientdata(client, ctx);
 
-	ctx->bridge.funcs = &sn65dsi83_funcs;
 	ctx->bridge.of_node = dev->of_node;
 	ctx->bridge.pre_enable_prev_first = true;
 	drm_bridge_add(&ctx->bridge);

-- 
2.34.1