From: Lars-Peter Clausen <lars@metafoo.de>
Date: Mon, 25 Mar 2013 13:24:22 +0000 (+0100)
Subject: dma: of: Remove unnecessary list_empty check
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=af31826d9b1ce432e033f0e91529aa1013076482;p=linux-beck.git

dma: of: Remove unnecessary list_empty check

list_for_each_entry is able to handle empty lists just fine, there is no need
to make sure that the list is non empty.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
---

diff --git a/drivers/dma/of-dma.c b/drivers/dma/of-dma.c
index 00db454f70d3..8266893fef45 100644
--- a/drivers/dma/of-dma.c
+++ b/drivers/dma/of-dma.c
@@ -36,11 +36,6 @@ static struct of_dma *of_dma_get_controller(struct of_phandle_args *dma_spec)
 
 	spin_lock(&of_dma_lock);
 
-	if (list_empty(&of_dma_list)) {
-		spin_unlock(&of_dma_lock);
-		return NULL;
-	}
-
 	list_for_each_entry(ofdma, &of_dma_list, of_dma_controllers)
 		if ((ofdma->of_node == dma_spec->np) &&
 		    (ofdma->of_dma_nbcells == dma_spec->args_count)) {