Requests the vchan lock before using xdma->stop_request.

Fixes: 6a40fb824596 ("dmaengine: xilinx: xdma: Fix synchronization issue") Cc: stable@vger.kernel.org Signed-off-by: Louis Chauvet louis.chauvet@bootlin.com --- Changes in v2: - Apply comments from Markus - Link to v1: https://lore.kernel.org/r/20240527-xdma-fixes-v1-1-f31434b56842@bootlin.com --- drivers/dma/xilinx/xdma.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/dma/xilinx/xdma.c b/drivers/dma/xilinx/xdma.c index e143a7330816..718842fdaf98 100644 --- a/drivers/dma/xilinx/xdma.c +++ b/drivers/dma/xilinx/xdma.c @@ -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)

--- base-commit: 1613e604df0cd359cf2a7fbd9be7a0bcfacfabd0 change-id: 20240527-xdma-fixes-74bbe2dcbeb8

Best regards,