msm: clock-voter: Fix uninitialized variable 'ret' in voter_clk_enable()

The uninitialized variable could potentially cause the function
to return non-zero even upon success.

Change-Id: I0e7750b127c0b12487a533c49bdabb7028718946
Signed-off-by: Saravana Kannan <skannan@codeaurora.org>
Signed-off-by: Matt Wagantall <mattw@codeaurora.org>
diff --git a/arch/arm/mach-msm/clock-voter.c b/arch/arm/mach-msm/clock-voter.c
index 1c742b1..e754752 100644
--- a/arch/arm/mach-msm/clock-voter.c
+++ b/arch/arm/mach-msm/clock-voter.c
@@ -75,7 +75,7 @@
 
 static int voter_clk_enable(struct clk *clk)
 {
-	int ret;
+	int ret = 0;
 	unsigned long flags;
 	unsigned cur_rate;
 	struct clk *parent;