include/exec: Add WITH_MMAP_LOCK_GUARD

[mirror_qemu.git] / linux-user / mmap.c

diff --git a/linux-user/mmap.c b/linux-user/mmap.c
index 44b53bd4461623aff7fa3dbb6f66f0b423e6f01d..a5dfb56545f3a525278f07a9c5b77a9889286b12 100644 (file)
--- a/linux-user/mmap.c
+++ b/linux-user/mmap.c
@@ -36,6 +36,7 @@ void mmap_lock(void)
 
 void mmap_unlock(void)
 {
+    assert(mmap_lock_count > 0);
     if (--mmap_lock_count == 0) {
         pthread_mutex_unlock(&mmap_mutex);
     }