mips: ath79: ar933x: Avoid warning with gcc5
GCC 5.3 report a warning: 'upper' and 'lower' may be used
uninitialized in this function [-Wmaybe-uninitialized].
Compiler might need explicit initializer.
Signed-off-by: Wills Wang <wills.wang@live.com>
diff --git a/arch/mips/mach-ath79/ar933x/ddr.c b/arch/mips/mach-ath79/ar933x/ddr.c
index 91452bc..7f20d34 100644
--- a/arch/mips/mach-ath79/ar933x/ddr.c
+++ b/arch/mips/mach-ath79/ar933x/ddr.c
@@ -268,6 +268,8 @@
dir = 1;
tap = readl(regs + AR71XX_DDR_REG_TAP_CTRL0);
val = tap;
+ upper = tap;
+ lower = tap;
while (!done) {
err = 0;