Re: [PATCH] soc: qcom: Fix a IS_ERR() vs NULL bug in probe

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On 6.06.2023 10:21, Dan Carpenter wrote:
> The devm_ioremap() function returns NULL on error, it never returns
> error pointers.
> 
> Fixes: a77b2a0b1280 ("soc: qcom: Introduce RPM master stats driver")
> Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
> ---
Thanks!

Reviewed-by: Konrad Dybcio <konrad.dybcio@xxxxxxxxxx>

Konrad
>  drivers/soc/qcom/rpm_master_stats.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/soc/qcom/rpm_master_stats.c b/drivers/soc/qcom/rpm_master_stats.c
> index 6dd98b9f7129..9ca13bcf67d3 100644
> --- a/drivers/soc/qcom/rpm_master_stats.c
> +++ b/drivers/soc/qcom/rpm_master_stats.c
> @@ -105,7 +105,7 @@ static int master_stats_probe(struct platform_device *pdev)
>  		}
>  
>  		data[i].base = devm_ioremap(dev, res.start, resource_size(&res));
> -		if (IS_ERR(data[i].base)) {
> +		if (!data[i].base) {
>  			debugfs_remove_recursive(root);
>  			return dev_err_probe(dev, -EINVAL,
>  					     "Could not map the MSG RAM slice idx %d!\n", i);



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