lkml.org 
[lkml]   [2011]   [Apr]   [22]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH v2 4/5] dmaengine: at_hdmac: remove channel status testing in tasklet
Date
There is no need to test if channel is enabled in tasklet:
- in error path, channel is disabled in interrupt routine
- in normal path, this test is performed in sub functions to report
a misuse of the engine.

Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
---
drivers/dma/at_hdmac.c | 7 -------
1 files changed, 0 insertions(+), 7 deletions(-)

diff --git a/drivers/dma/at_hdmac.c b/drivers/dma/at_hdmac.c
index 8f50a0f..65bd52a 100644
--- a/drivers/dma/at_hdmac.c
+++ b/drivers/dma/at_hdmac.c
@@ -472,13 +472,6 @@ static void atc_tasklet(unsigned long data)
{
struct at_dma_chan *atchan = (struct at_dma_chan *)data;

- /* Channel cannot be enabled here */
- if (atc_chan_is_enabled(atchan)) {
- dev_err(chan2dev(&atchan->chan_common),
- "BUG: channel enabled in tasklet\n");
- return;
- }
-
spin_lock(&atchan->lock);
if (test_and_clear_bit(ATC_IS_ERROR, &atchan->status))
atc_handle_error(atchan);
--
1.7.3


\
 
 \ /
  Last update: 2011-04-22 18:37    [W:0.138 / U:0.216 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site