[PATCH 2/2] reset: Allow reset_get_by_name() with NULL name

Sean Anderson seanga2 at gmail.com
Wed Jan 4 18:24:13 CET 2023


On 11/28/22 00:53, Samuel Holland wrote:
> This allows devm_reset_control_get(dev, NULL) to work and get the first
> reset control, which is common in code ported from Linux.
> 
> Signed-off-by: Samuel Holland <samuel at sholland.org>
> ---
> 
>   drivers/reset/reset-uclass.c | 5 +++--
>   1 file changed, 3 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/reset/reset-uclass.c b/drivers/reset/reset-uclass.c
> index bcef46039c2..a26c623a77e 100644
> --- a/drivers/reset/reset-uclass.c
> +++ b/drivers/reset/reset-uclass.c
> @@ -147,13 +147,14 @@ int reset_get_bulk(struct udevice *dev, struct reset_ctl_bulk *bulk)
>   int reset_get_by_name(struct udevice *dev, const char *name,
>   		     struct reset_ctl *reset_ctl)
>   {
> -	int index;
> +	int index = 0;
>   
>   	debug("%s(dev=%p, name=%s, reset_ctl=%p)\n", __func__, dev, name,
>   	      reset_ctl);
>   	reset_ctl->dev = NULL;
>   
> -	index = dev_read_stringlist_search(dev, "reset-names", name);
> +	if (name)
> +		index = dev_read_stringlist_search(dev, "reset-names", name);
>   	if (index < 0) {
>   		debug("fdt_stringlist_search() failed: %d\n", index);
>   		return index;

Reviewed-by: Sean Anderson <seanga2 at gmail.com>


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