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-rw-r--r--tests/gem_mmap.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/tests/gem_mmap.c b/tests/gem_mmap.c
index 49e72596..41884292 100644
--- a/tests/gem_mmap.c
+++ b/tests/gem_mmap.c
@@ -167,6 +167,7 @@ igt_main
igt_assert(OBJECT_SIZE > 4096);
arg.handle = gem_create(fd, OBJECT_SIZE);
addr = gem_mmap__cpu(fd, arg.handle, 0, 4096, PROT_WRITE);
+ igt_assert(addr);
memset(addr, 0, 4096);
munmap(addr, 4096);
gem_close(fd, arg.handle);