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| author | Louis Chauvet <louis.chauvet@bootlin.com> | 2024-06-07 10:34:38 +0200 |
|---|---|---|
| committer | Vinod Koul <vkoul@kernel.org> | 2024-06-07 22:41:51 +0530 |
| commit | 462237d2d93fc9e9221d1cf9f773954d27da83c0 (patch) | |
| tree | 6b2c4a648c9189930a71de7c1460fe9f8b7c534b /drivers/dma/xilinx | |
| parent | 1613e604df0cd359cf2a7fbd9be7a0bcfacfabd0 (diff) | |
| download | linux-462237d2d93fc9e9221d1cf9f773954d27da83c0.tar.gz linux-462237d2d93fc9e9221d1cf9f773954d27da83c0.tar.bz2 linux-462237d2d93fc9e9221d1cf9f773954d27da83c0.zip | |
dmaengine: xilinx: xdma: Fix data synchronisation in xdma_channel_isr()
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>
Link: https://lore.kernel.org/r/20240607-xdma-fixes-v2-1-0282319ce345@bootlin.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Diffstat (limited to 'drivers/dma/xilinx')
| -rw-r--r-- | drivers/dma/xilinx/xdma.c | 4 |
1 files 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) |