[PATCH v2] drm/msm/hdmi: remove unnecessary NULL check

Abhinav Kumar quic_abhinavk at quicinc.com
Fri Nov 18 14:45:09 UTC 2022



On 11/18/2022 5:03 AM, Dan Carpenter wrote:
> This code was recently refactored in commit and now the "hdmi" pointer
> can't be NULL.  Checking for NULL leads to a Smatch warning:
> 
>      drivers/gpu/drm/msm/hdmi/hdmi.c:141 msm_hdmi_init()
>      warn: variable dereferenced before check 'hdmi' (see line 119)
> 
> Fixes: 69a88d8633ec ("drm/msm/hdmi: move resource allocation to probe function")
> Signed-off-by: Dan Carpenter <error27 at gmail.com>
Reviewed-by: Abhinav Kumar <quic_abhinavk at quicinc.com>
> ---
> v2: Add a Fixes tag.  Re-work the commit message.
> 
>   drivers/gpu/drm/msm/hdmi/hdmi.c | 3 +--
>   1 file changed, 1 insertion(+), 2 deletions(-)
> 
> diff --git a/drivers/gpu/drm/msm/hdmi/hdmi.c b/drivers/gpu/drm/msm/hdmi/hdmi.c
> index 7001fabd0977..4d3fdc806bef 100644
> --- a/drivers/gpu/drm/msm/hdmi/hdmi.c
> +++ b/drivers/gpu/drm/msm/hdmi/hdmi.c
> @@ -138,8 +138,7 @@ static int msm_hdmi_init(struct hdmi *hdmi)
>   	return 0;
>   
>   fail:
> -	if (hdmi)
> -		msm_hdmi_destroy(hdmi);
> +	msm_hdmi_destroy(hdmi);
>   
>   	return ret;
>   }


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