lkml.org 
[lkml]   [2018]   [Aug]   [17]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH 1/3] dmaengine: fsldma: move spin_lock_bh to spin_lock in tasklet
Date
as you are already in a tasklet, it is unnecessary to call spin_lock_bh.

Signed-off-by: Barry Song <21cnbao@gmail.com>
---
drivers/dma/fsldma.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/dma/fsldma.c b/drivers/dma/fsldma.c
index 1117b51..9d360a3 100644
--- a/drivers/dma/fsldma.c
+++ b/drivers/dma/fsldma.c
@@ -987,7 +987,7 @@ static void dma_do_tasklet(unsigned long data)

chan_dbg(chan, "tasklet entry\n");

- spin_lock_bh(&chan->desc_lock);
+ spin_lock(&chan->desc_lock);

/* the hardware is now idle and ready for more */
chan->idle = true;
@@ -995,7 +995,7 @@ static void dma_do_tasklet(unsigned long data)
/* Run all cleanup for descriptors which have been completed */
fsldma_cleanup_descriptors(chan);

- spin_unlock_bh(&chan->desc_lock);
+ spin_unlock(&chan->desc_lock);

chan_dbg(chan, "tasklet exit\n");
}
--
2.7.4
\
 
 \ /
  Last update: 2018-08-17 15:01    [W:0.036 / U:0.288 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site