lkml.org 
[lkml]   [2022]   [May]   [29]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
Date
From
Subject[PATCH v2] dmaengine: altera-msgdma: correct mutex locking order
The order of spin_unlock and spin_lock seems wrong. Correct it.

Signed-off-by: Nam Cao <namcaov@gmail.com>
---
Changes in v2:
- Get rid of dirty index problem due to the patch being manually editted.

drivers/dma/altera-msgdma.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/dma/altera-msgdma.c b/drivers/dma/altera-msgdma.c
index 6f56dfd375e3..e35096c12abc 100644
--- a/drivers/dma/altera-msgdma.c
+++ b/drivers/dma/altera-msgdma.c
@@ -591,9 +591,9 @@ static void msgdma_chan_desc_cleanup(struct msgdma_device *mdev)

dmaengine_desc_get_callback(&desc->async_tx, &cb);
if (dmaengine_desc_callback_valid(&cb)) {
- spin_unlock(&mdev->lock);
- dmaengine_desc_callback_invoke(&cb, NULL);
spin_lock(&mdev->lock);
+ dmaengine_desc_callback_invoke(&cb, NULL);
+ spin_unlock(&mdev->lock);
}

/* Run any dependencies, then free the descriptor */
--
2.25.1
\
 
 \ /
  Last update: 2022-05-29 20:24    [W:0.050 / U:0.040 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site