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-rw-r--r--m68k-semi.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/m68k-semi.c b/m68k-semi.c
index 0371089b98..7fde10e8f3 100644
--- a/m68k-semi.c
+++ b/m68k-semi.c
@@ -370,7 +370,7 @@ void do_m68k_semihosting(CPUM68KState *env, int nr)
TaskState *ts = env->opaque;
/* Allocate the heap using sbrk. */
if (!ts->heap_limit) {
- long ret;
+ abi_ulong ret;
uint32_t size;
uint32_t base;
@@ -379,8 +379,9 @@ void do_m68k_semihosting(CPUM68KState *env, int nr)
/* Try a big heap, and reduce the size if that fails. */
for (;;) {
ret = do_brk(base + size);
- if (ret != -1)
+ if (ret >= (base + size)) {
break;
+ }
size >>= 1;
}
ts->heap_limit = base + size;