Accordingly to dma_cookie_status() description locking is not required.
Signed-off-by: Andy Shevchenko <[email protected]>
Cc: Stephen Warren <[email protected]>
Cc: [email protected]
---
drivers/dma/tegra20-apb-dma.c | 8 +++-----
1 file changed, 3 insertions(+), 5 deletions(-)
diff --git a/drivers/dma/tegra20-apb-dma.c b/drivers/dma/tegra20-apb-dma.c
index 33f59ec..019ccfa 100644
--- a/drivers/dma/tegra20-apb-dma.c
+++ b/drivers/dma/tegra20-apb-dma.c
@@ -767,13 +767,11 @@ static enum dma_status tegra_dma_tx_status(struct
dma_chan *dc,
unsigned long flags;
unsigned int residual;
- spin_lock_irqsave(&tdc->lock, flags);
-
ret = dma_cookie_status(dc, cookie, txstate);
- if (ret == DMA_SUCCESS) {
- spin_unlock_irqrestore(&tdc->lock, flags);
+ if (ret == DMA_SUCCESS)
return ret;
- }
+
+ spin_lock_irqsave(&tdc->lock, flags);
/* Check on wait_ack desc status */
list_for_each_entry(dma_desc, &tdc->free_dma_desc, node) {
--
1.8.2.rc0.22.gb3600c3
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