[PATCH next] drm/panel: nt37801: Fix IS_ERR() vs NULL check in probe()

[Jessica Zhang]

On 5/23/2025 9:09 AM, Dan Carpenter wrote:
> The devm_drm_panel_alloc() function returns error pointers, it doesn't
> return NULL.  Update the check to match.
> 
> Fixes: 4fca6849864d ("drm/panel: Add Novatek NT37801 panel driver")
> Signed-off-by: Dan Carpenter <dan.carpenter at linaro.org>

Reviewed-by: Jessica Zhang <quic_jesszhan at quicinc.com>

> ---
>   drivers/gpu/drm/panel/panel-novatek-nt37801.c | 4 ++--
>   1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/gpu/drm/panel/panel-novatek-nt37801.c b/drivers/gpu/drm/panel/panel-novatek-nt37801.c
> index 84d367eab058..d6a37d7e0cc6 100644
> --- a/drivers/gpu/drm/panel/panel-novatek-nt37801.c
> +++ b/drivers/gpu/drm/panel/panel-novatek-nt37801.c
> @@ -257,8 +257,8 @@ static int novatek_nt37801_probe(struct mipi_dsi_device *dsi)
>   	ctx = devm_drm_panel_alloc(dev, struct novatek_nt37801, panel,
>   				   &novatek_nt37801_panel_funcs,
>   				   DRM_MODE_CONNECTOR_DSI);
> -	if (!ctx)
> -		return -ENOMEM;
> +	if (IS_ERR(ctx))
> +		return PTR_ERR(ctx);
>   
>   	ret = devm_regulator_bulk_get_const(dev,
>   					    ARRAY_SIZE(novatek_nt37801_supplies),