[PATCH] drm/simpledrm: Fix power domain device link validity check
Thomas Zimmermann
tzimmermann at suse.de
Thu Oct 12 08:36:17 UTC 2023
Hi
Am 11.10.23 um 16:32 schrieb Thierry Reding:
> From: Thierry Reding <treding at nvidia.com>
>
> We need to check if a link is non-NULL before trying to delete it.
>
> Signed-off-by: Thierry Reding <treding at nvidia.com>
Reviewed-by: Thomas Zimmermann <tzimmermann at suse.de>
I'm going to merge the patch into drm-misc-next with the additional
Fixes tag
Fixes: 61df9ca23107 ("drm/simpledrm: Add support for multiple
"power-domains"")
Best regards
Thomas
> ---
> drivers/gpu/drm/tiny/simpledrm.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/tiny/simpledrm.c b/drivers/gpu/drm/tiny/simpledrm.c
> index 9c597461d1e2..8bdaf66044fc 100644
> --- a/drivers/gpu/drm/tiny/simpledrm.c
> +++ b/drivers/gpu/drm/tiny/simpledrm.c
> @@ -506,7 +506,7 @@ static void simpledrm_device_detach_genpd(void *res)
> return;
>
> for (i = sdev->pwr_dom_count - 1; i >= 0; i--) {
> - if (!sdev->pwr_dom_links[i])
> + if (sdev->pwr_dom_links[i])
> device_link_del(sdev->pwr_dom_links[i]);
> if (!IS_ERR_OR_NULL(sdev->pwr_dom_devs[i]))
> dev_pm_domain_detach(sdev->pwr_dom_devs[i], true);
--
Thomas Zimmermann
Graphics Driver Developer
SUSE Software Solutions Germany GmbH
Frankenstrasse 146, 90461 Nuernberg, Germany
GF: Ivo Totev, Andrew Myers, Andrew McDonald, Boudien Moerman
HRB 36809 (AG Nuernberg)
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