[PATCH v7 11/11] drm/bridge: samsung-dsim: 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.ceres...@bootlin.com>

---

This patch was added in v7.
---
 drivers/gpu/drm/bridge/samsung-dsim.c | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/bridge/samsung-dsim.c 
b/drivers/gpu/drm/bridge/samsung-dsim.c
index 
54de6ed2fae81bc13301a6b1ee8f38183a3118b6..3d41db7a0ceeddccc1a89a2ff1f38fe10ec6acfe
 100644
--- a/drivers/gpu/drm/bridge/samsung-dsim.c
+++ b/drivers/gpu/drm/bridge/samsung-dsim.c
@@ -1935,9 +1935,9 @@ int samsung_dsim_probe(struct platform_device *pdev)
        struct samsung_dsim *dsi;
        int ret, i;
 
-       dsi = devm_kzalloc(dev, sizeof(*dsi), GFP_KERNEL);
-       if (!dsi)
-               return -ENOMEM;
+       dsi = devm_drm_bridge_alloc(dev, struct samsung_dsim, bridge, 
&samsung_dsim_bridge_funcs);
+       if (IS_ERR(dsi))
+               return PTR_ERR(dsi);
 
        init_completion(&dsi->completed);
        spin_lock_init(&dsi->transfer_lock);
@@ -2007,7 +2007,6 @@ int samsung_dsim_probe(struct platform_device *pdev)
 
        pm_runtime_enable(dev);
 
-       dsi->bridge.funcs = &samsung_dsim_bridge_funcs;
        dsi->bridge.of_node = dev->of_node;
        dsi->bridge.type = DRM_MODE_CONNECTOR_DSI;
 

-- 
2.48.1