From a068682cd69461911407411b4198248a87c583e2 Mon Sep 17 00:00:00 2001
From: Russell King <rmk+kernel@arm.linux.org.uk>
Date: Sat, 26 May 2012 17:00:49 +0100
Subject: [PATCH] dmaengine: PL08x: ensure all descriptors are freed when
channel is released
Ensure all queued descriptors are freed when the channel is released,
ensuring we don't leak memory
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Tested-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
drivers/dma/amba-pl08x.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/dma/amba-pl08x.c b/drivers/dma/amba-pl08x.c
index a5d85b101b894..6fbeebb9486fd 100644
--- a/drivers/dma/amba-pl08x.c
+++ b/drivers/dma/amba-pl08x.c
@@ -1117,6 +1117,8 @@ static int pl08x_alloc_chan_resources(struct dma_chan *chan)
static void pl08x_free_chan_resources(struct dma_chan *chan)
{
+ /* Ensure all queued descriptors are freed */
+ vchan_free_chan_resources(to_virt_chan(chan));
}
static struct dma_async_tx_descriptor *pl08x_prep_dma_interrupt(