[PATCH next] drm: bridge: waveshare-dsi: Fix NULL vs IS_ERR() check in probe()

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The devm_drm_bridge_alloc() function returns error pointers, it never
returns NULL.  Fix the checking to match.

Fixes: dbdea37add13 ("drm: bridge: Add waveshare DSI2DPI unit driver")
Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
---
 drivers/gpu/drm/bridge/waveshare-dsi.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/bridge/waveshare-dsi.c b/drivers/gpu/drm/bridge/waveshare-dsi.c
index 01c70e7d3d3b..43f4e7412d72 100644
--- a/drivers/gpu/drm/bridge/waveshare-dsi.c
+++ b/drivers/gpu/drm/bridge/waveshare-dsi.c
@@ -147,8 +147,8 @@ static int ws_bridge_probe(struct i2c_client *i2c)
 	int ret;
 
 	ws = devm_drm_bridge_alloc(dev, struct ws_bridge, bridge, &ws_bridge_bridge_funcs);
-	if (!ws)
-		return -ENOMEM;
+	if (IS_ERR(ws))
+		return PTR_ERR(ws);
 
 	ws->dev = dev;
 
-- 
2.47.2





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