qemu-traditional: Fix build warnings on Wheezy

  CC    i386-dm/eepro100.o
hw/eepro100.c: In function ‘eepro100_read4’:
hw/eepro100.c:1232:5: warning: ‘val’ may be used uninitialized in this function [-Wmaybe-uninitialized]
hw/eepro100.c: In function ‘eepro100_read2’:
hw/eepro100.c:1202:5: warning: ‘val’ may be used uninitialized in this function [-Wmaybe-uninitialized]
hw/eepro100.c: In function ‘eepro100_read1’:
hw/eepro100.c:1179:5: warning: ‘val’ may be used uninitialized in this function [-Wmaybe-uninitialized]

Use ~0 to match the behaviour of real hardware.

Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com>
CC: Ian Campbell <Ian.Campbell@citrix.com>
Acked-by: Ian Jackson <ian.jackson@eu.citrix.com>
(cherry picked from commit 7f5b3c338e0f8938ba575dec18255dcbee0c2ee2)

diff --git a/hw/eepro100.c b/hw/eepro100.c
index bc6c3d5a97e95bc4f730b90f3785a429af1f4949..d172b91d5f88f708e90f27fd3ec0fbfe713fd5c6 100644 (file)
--- a/hw/eepro100.c
+++ b/hw/eepro100.c
@@ -1136,7 +1136,7 @@ static void eepro100_write_port(EEPRO100State * s, uint32_t val)
 
 static uint8_t eepro100_read1(EEPRO100State * s, uint32_t addr)
 {
-    uint8_t val;
+    uint8_t val = ~0;
     if (addr <= sizeof(s->mem) - sizeof(val)) {
         memcpy(&val, &s->mem[addr], sizeof(val));
     }
@@ -1181,7 +1181,7 @@ static uint8_t eepro100_read1(EEPRO100State * s, uint32_t addr)
 
 static uint16_t eepro100_read2(EEPRO100State * s, uint32_t addr)
 {
-    uint16_t val;
+    uint16_t val = ~0;
     if (addr <= sizeof(s->mem) - sizeof(val)) {
         memcpy(&val, &s->mem[addr], sizeof(val));
     }
@@ -1204,7 +1204,7 @@ static uint16_t eepro100_read2(EEPRO100State * s, uint32_t addr)
 
 static uint32_t eepro100_read4(EEPRO100State * s, uint32_t addr)
 {
-    uint32_t val;
+    uint32_t val = ~0U;
     if (addr <= sizeof(s->mem) - sizeof(val)) {
         memcpy(&val, &s->mem[addr], sizeof(val));
     }