[PATCH 4/5] S3C64XX DMA: Free node for non-circular queues
From: Jassi Brar <hidden>
Date: 2009-11-05 04:44:39
Subsystem:
arm port, the rest · Maintainers:
Russell King, Linus Torvalds
We need to free the buff and lli nodes if the buffer queue is not CIRCULAR. Signed-off-by: Jassi Brar <redacted> --- arch/arm/plat-s3c64xx/dma.c | 6 ++++++ 1 files changed, 6 insertions(+), 0 deletions(-)
diff --git a/arch/arm/plat-s3c64xx/dma.c b/arch/arm/plat-s3c64xx/dma.c
index 20b0747..0971d06 100644
--- a/arch/arm/plat-s3c64xx/dma.c
+++ b/arch/arm/plat-s3c64xx/dma.c@@ -612,6 +612,12 @@ static irqreturn_t s3c64xx_dma_irq(int irq, void *pw) s3c64xx_dma_bufffdone(chan, buff, res); + /* Free the node and update curr, if non-circular queue */ + if (!(chan->flags & S3C2410_DMAF_CIRCULAR)) { + chan->curr = buff->next; + s3c64xx_dma_freebuff(buff); + } + /* Update 'next' */ buff = chan->next; if (chan->next == chan->end) {
--
1.6.2.5