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-rw-r--r--tools/testing/selftests/kselftest_harness.h8
1 files changed, 7 insertions, 1 deletions
diff --git a/tools/testing/selftests/kselftest_harness.h b/tools/testing/selftests/kselftest_harness.h
index 666c9fde76da..d67ec4d762db 100644
--- a/tools/testing/selftests/kselftest_harness.h
+++ b/tools/testing/selftests/kselftest_harness.h
@@ -69,6 +69,12 @@
#include "kselftest.h"
+static inline void __kselftest_memset_safe(void *s, int c, size_t n)
+{
+ if (n > 0)
+ memset(s, c, n);
+}
+
#define TEST_TIMEOUT_DEFAULT 30
/* Utilities exposed to the test definitions */
@@ -418,7 +424,7 @@
self = mmap(NULL, sizeof(*self), PROT_READ | PROT_WRITE, \
MAP_SHARED | MAP_ANONYMOUS, -1, 0); \
} else { \
- memset(&self_private, 0, sizeof(self_private)); \
+ __kselftest_memset_safe(&self_private, 0, sizeof(self_private)); \
self = &self_private; \
} \
} \