iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

dmaengine: xilinx: xdma: Fix data synchronisation in xdma_channel_isr()

Browse Source 
Requests the vchan lock before using xdma->stop_request.

Fixes: 6a40fb8245 ("dmaengine: xilinx: xdma: Fix synchronization issue")
Cc: stable@vger.kernel.org
Signed-off-by: Louis Chauvet <louis.chauvet@bootlin.com>
Link: https://lore.kernel.org/r/20240607-xdma-fixes-v2-1-0282319ce345@bootlin.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
This commit is contained in:
Louis Chauvet 2024-06-07 10:34:38 +02:00 committed by Vinod Koul
parent 1613e604df
commit 462237d2d9
1 changed files with 2 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
drivers/dma/xilinx/xdma.c
View File

@ -885,11 +885,11 @@ static irqreturn_t xdma_channel_isr(int irq, void *dev_id)
u32 st;
bool repeat_tx;
spin_lock(&xchan->vchan.lock);
if (xchan->stop_requested)
complete(&xchan->last_interrupt);
spin_lock(&xchan->vchan.lock);
/* get submitted request */
vd = vchan_next_desc(&xchan->vchan);
if (!vd)