[PATCH] MIPS: ath79: Avoid using unitialized 'reg' variable

[Markos Chandras <markos.chandras@xxxxxxxxxx>]

Fixes the following build error:
arch/mips/include/asm/mach-ath79/ath79.h:139:20: error: 'reg' may be used
uninitialized in this function [-Werror=maybe-uninitialized]
arch/mips/ath79/common.c:62:6: note: 'reg' was declared here
In file included from arch/mips/ath79/common.c:20:0:
arch/mips/ath79/common.c: In function 'ath79_device_reset_clear':
arch/mips/include/asm/mach-ath79/ath79.h:139:20:
error: 'reg' may be used uninitialized in this function
[-Werror=maybe-uninitialized]
arch/mips/ath79/common.c:90:6: note: 'reg' was declared here

Signed-off-by: Markos Chandras <markos.chandras@xxxxxxxxxx>
---
This patch is for the upstream-sfr/mips-for-linux-next tree
---
 arch/mips/ath79/common.c | 32 ++++++++++++++++++--------------
 1 file changed, 18 insertions(+), 14 deletions(-)

diff --git a/arch/mips/ath79/common.c b/arch/mips/ath79/common.c
index eb3966c..6a8c00f 100644
--- a/arch/mips/ath79/common.c
+++ b/arch/mips/ath79/common.c
@@ -62,20 +62,22 @@ void ath79_device_reset_set(u32 mask)
 	u32 reg;
 	u32 t;
 
-	if (soc_is_ar71xx())
+	if (soc_is_ar71xx()) {
 		reg = AR71XX_RESET_REG_RESET_MODULE;
-	else if (soc_is_ar724x())
+	} else if (soc_is_ar724x()) {
 		reg = AR724X_RESET_REG_RESET_MODULE;
-	else if (soc_is_ar913x())
+	} else if (soc_is_ar913x()) {
 		reg = AR913X_RESET_REG_RESET_MODULE;
-	else if (soc_is_ar933x())
+	} else if (soc_is_ar933x()) {
 		reg = AR933X_RESET_REG_RESET_MODULE;
-	else if (soc_is_ar934x())
+	} else if (soc_is_ar934x()) {
 		reg = AR934X_RESET_REG_RESET_MODULE;
-	else if (soc_is_qca955x())
+	} else if (soc_is_qca955x()) {
 		reg = QCA955X_RESET_REG_RESET_MODULE;
-	else
+	} else {
 		BUG();
+		panic("Unknown SOC!");
+	}
 
 	spin_lock_irqsave(&ath79_device_reset_lock, flags);
 	t = ath79_reset_rr(reg);
@@ -90,20 +92,22 @@ void ath79_device_reset_clear(u32 mask)
 	u32 reg;
 	u32 t;
 
-	if (soc_is_ar71xx())
+	if (soc_is_ar71xx()) {
 		reg = AR71XX_RESET_REG_RESET_MODULE;
-	else if (soc_is_ar724x())
+	} else if (soc_is_ar724x()) {
 		reg = AR724X_RESET_REG_RESET_MODULE;
-	else if (soc_is_ar913x())
+	} else if (soc_is_ar913x()) {
 		reg = AR913X_RESET_REG_RESET_MODULE;
-	else if (soc_is_ar933x())
+	} else if (soc_is_ar933x()) {
 		reg = AR933X_RESET_REG_RESET_MODULE;
-	else if (soc_is_ar934x())
+	} else if (soc_is_ar934x()) {
 		reg = AR934X_RESET_REG_RESET_MODULE;
-	else if (soc_is_qca955x())
+	} else if (soc_is_qca955x()) {
 		reg = QCA955X_RESET_REG_RESET_MODULE;
-	else
+	} else {
 		BUG();
+		panic("Unknown SOC!");
+	}
 
 	spin_lock_irqsave(&ath79_device_reset_lock, flags);
 	t = ath79_reset_rr(reg);
-- 
1.8.3.2