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[1/5] drm/panel: Fix IS_ERR() vs NULL check in nt35950_probe()

Message ID 20221110094445.2930509-2-cuigaosheng1@huawei.com (mailing list archive)
State New, archived
Headers show
Series Fix IS_ERR() vs NULL check for drm | expand

Commit Message

Gaosheng Cui Nov. 10, 2022, 9:44 a.m. UTC 
The mipi_dsi_device_register_full() returns an ERR_PTR() on failure,
we should use IS_ERR() to check the return value.

Fixes: 623a3531e9cf ("drm/panel: Add driver for Novatek NT35950 DSI DriverIC panels")
Signed-off-by: Gaosheng Cui <cuigaosheng1@huawei.com>
---
 drivers/gpu/drm/panel/panel-novatek-nt35950.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
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Patch

diff --git a/drivers/gpu/drm/panel/panel-novatek-nt35950.c b/drivers/gpu/drm/panel/panel-novatek-nt35950.c
index 3a844917da07..6304fe5b9038 100644
--- a/drivers/gpu/drm/panel/panel-novatek-nt35950.c
+++ b/drivers/gpu/drm/panel/panel-novatek-nt35950.c
@@ -579,7 +579,7 @@  static int nt35950_probe(struct mipi_dsi_device *dsi)
 		}
 
 		nt->dsi[1] = mipi_dsi_device_register_full(dsi_r_host, info);
-		if (!nt->dsi[1]) {
+		if (IS_ERR(nt->dsi[1])) {
 			dev_err(dev, "Cannot get secondary DSI node\n");
 			return -ENODEV;
 		}