On 2016-09-14 02:29:08 +0300, Laurent Pinchart wrote:
> The wpf_configure() function can be called both from IRQ and non-IRQ
> contexts, use spin_lock_irqsave().
>
> Signed-off-by: Laurent Pinchart <laurent.pinchart+rene...@ideasonboard.com>
Acked-by: Niklas Söderlund <niklas.soderlund+rene...@ragnatech.se>
> ---
> drivers/media/platform/vsp1/vsp1_wpf.c | 5 +++--
> 1 file changed, 3 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/media/platform/vsp1/vsp1_wpf.c
> b/drivers/media/platform/vsp1/vsp1_wpf.c
> index b4ecffbaa3e3..c483fead3e98 100644
> --- a/drivers/media/platform/vsp1/vsp1_wpf.c
> +++ b/drivers/media/platform/vsp1/vsp1_wpf.c
> @@ -251,11 +251,12 @@ static void wpf_configure(struct vsp1_entity *entity,
> if (params == VSP1_ENTITY_PARAMS_RUNTIME) {
> const unsigned int mask = BIT(WPF_CTRL_VFLIP)
> | BIT(WPF_CTRL_HFLIP);
> + unsigned long flags;
>
> - spin_lock(&wpf->flip.lock);
> + spin_lock_irqsave(&wpf->flip.lock, flags);
> wpf->flip.active = (wpf->flip.active & ~mask)
> | (wpf->flip.pending & mask);
> - spin_unlock(&wpf->flip.lock);
> + spin_unlock_irqrestore(&wpf->flip.lock, flags);
>
> outfmt = (wpf->alpha << VI6_WPF_OUTFMT_PDV_SHIFT) | wpf->outfmt;
>
> --
> Regards,
>
> Laurent Pinchart
>
--
Regards,
Niklas Söderlund
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