[PATCH 3/3] dmaengine: at_xdmac: move spin_lock_bh to spin_lock in tasklet

[Barry Song]

as you are already in a tasklet, it is unnecessary to call spin_lock_bh.

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

diff --git a/drivers/dma/at_xdmac.c b/drivers/dma/at_xdmac.c
index 4bf7256..4e55768 100644
--- a/drivers/dma/at_xdmac.c
+++ b/drivers/dma/at_xdmac.c
@@ -1600,7 +1600,7 @@ static void at_xdmac_tasklet(unsigned long data)
                if (atchan->status & AT_XDMAC_CIS_ROIS)
                        dev_err(chan2dev(&atchan->chan), "request overflow 
error!!!");
 
-               spin_lock_bh(&atchan->lock);
+               spin_lock(&atchan->lock);
                desc = list_first_entry(&atchan->xfers_list,
                                        struct at_xdmac_desc,
                                        xfer_node);
@@ -1610,7 +1610,7 @@ static void at_xdmac_tasklet(unsigned long data)
                txd = &desc->tx_dma_desc;
 
                at_xdmac_remove_xfer(atchan, desc);
-               spin_unlock_bh(&atchan->lock);
+               spin_unlock(&atchan->lock);
 
                if (!at_xdmac_chan_is_cyclic(atchan)) {
                        dma_cookie_complete(txd);
-- 
2.7.4