Re: [PATCH] dma driver: fix potential oom issue of fsldma

From
Li Yang <hidden>
Date
2016-03-07 23:47:53
Reply to
Xuelin Shi, 2015-12-24
The change looks to be correct.  But we need better formatting and description.

Make the title something like:

dmaengine: fsldma: fix memory leak

On Thu, Dec 24, 2015 at 1:26 AM, Xuelin Shi [off-list ref] wrote:
From: Xuelin Shi <redacted>

missing unmap sources and destinations while doing dequeue.
How can this describe your change?

Regards,
Leo
quoted hunk ↗ jump to hunk
Signed-off-by: Xuelin Shi <redacted>
---
 drivers/dma/fsldma.c | 2 ++
 1 file changed, 2 insertions(+)
diff --git a/drivers/dma/fsldma.c b/drivers/dma/fsldma.c
index 2209f75..aac85c3 100644
--- a/drivers/dma/fsldma.c
+++ b/drivers/dma/fsldma.c
@@ -522,6 +522,8 @@ static dma_cookie_t fsldma_run_tx_complete_actions(struct fsldma_chan *chan,
                        chan_dbg(chan, "LD %p callback\n", desc);
                        txd->callback(txd->callback_param);
                }
+
+               dma_descriptor_unmap(txd);
        }

        /* Run any dependencies */
--
1.8.4

_______________________________________________
Linuxppc-dev mailing list
Linuxppc-dev@lists.ozlabs.org
https://lists.ozlabs.org/listinfo/linuxppc-dev
Thread (3 messages) 3 messages, 2 authors, last reply 2016-03-07
Keyboard shortcuts
hback out one level
jnext message in thread / next series-diff position
kprevious message in thread / previous series-diff position
ldrill in
Escclose help / fold thread tree
?toggle this help