Fix warning about uninitialized variable

With gcc 4.2.1-sjlj (mingw32-2) I get this warning:
/src/qemu/exec.c: In function 'qemu_ram_alloc':
/src/qemu/exec.c:2777: warning: 'offset' may be used uninitialized in this function

Fix by initializing the variable.

Signed-off-by: Blue Swirl <blauwirbel@gmail.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/exec.c b/exec.c
index 5420f564b5..4641b3eb6e 100644
--- a/exec.c
+++ b/exec.c
@@ -2774,7 +2774,7 @@ static void *file_ram_alloc(RAMBlock *block,
 static ram_addr_t find_ram_offset(ram_addr_t size)
 {
     RAMBlock *block, *next_block;
-    ram_addr_t offset, mingap = ULONG_MAX;
+    ram_addr_t offset = 0, mingap = ULONG_MAX;
 
     if (QLIST_EMPTY(&ram_list.blocks))
         return 0;