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charset="utf-8" Make IS_ERR() judge the mipi_dsi_device_register_full() function return in nt36523_probe(). Signed-off-by: Minjie Du --- drivers/gpu/drm/panel/panel-novatek-nt36523.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/panel/panel-novatek-nt36523.c b/drivers/gpu/dr= m/panel/panel-novatek-nt36523.c index c3befa7f2..3823255a9 100644 --- a/drivers/gpu/drm/panel/panel-novatek-nt36523.c +++ b/drivers/gpu/drm/panel/panel-novatek-nt36523.c @@ -1266,7 +1266,7 @@ static int nt36523_probe(struct mipi_dsi_device *dsi) return dev_err_probe(dev, -EPROBE_DEFER, "cannot get secondary DSI host= \n"); =20 pinfo->dsi[1] =3D mipi_dsi_device_register_full(dsi1_host, info); - if (!pinfo->dsi[1]) { + if (IS_ERR(pinfo->dsi[1])) { dev_err(dev, "cannot get secondary DSI device\n"); return -ENODEV; } --=20 2.39.0