lkml.org 
[lkml]   [2022]   [Feb]   [15]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH -next] dmaengine: at_xdmac: Fix missing unlock in at_xdmac_tasklet()
On 07-01-22, 10:40, Yang Yingliang wrote:
> Add the missing unlock before return from at_xdmac_tasklet().

Applied, thanks

>
> Fixes: e77e561925df ("dmaengine: at_xdmac: Fix race over irq_status")
> Reported-by: Hulk Robot <hulkci@huawei.com>
> Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
> ---
> drivers/dma/at_xdmac.c | 4 +++-
> 1 file changed, 3 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/dma/at_xdmac.c b/drivers/dma/at_xdmac.c
> index a1da2b4b6d73..1476156af74b 100644
> --- a/drivers/dma/at_xdmac.c
> +++ b/drivers/dma/at_xdmac.c
> @@ -1681,8 +1681,10 @@ static void at_xdmac_tasklet(struct tasklet_struct *t)
> __func__, atchan->irq_status);
>
> if (!(atchan->irq_status & AT_XDMAC_CIS_LIS) &&
> - !(atchan->irq_status & error_mask))
> + !(atchan->irq_status & error_mask)) {
> + spin_unlock_irq(&atchan->lock);
> return;
> + }
>
> if (atchan->irq_status & error_mask)
> at_xdmac_handle_error(atchan);
> --
> 2.25.1

--
~Vinod

\
 
 \ /
  Last update: 2022-02-15 06:26    [W:0.061 / U:0.156 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site