[PATCH ARM] selftests, arm64: fix uninitialized symbol in tags_test.c
Andrey Konovalov
andreyknvl at google.com
Mon Aug 19 13:14:42 UTC 2019
Fix tagged_ptr not being initialized when TBI is not enabled.
Dan Carpenter <dan.carpenter at oracle.com>
Signed-off-by: Andrey Konovalov <andreyknvl at google.com>
---
tools/testing/selftests/arm64/tags_test.c | 8 +++++---
1 file changed, 5 insertions(+), 3 deletions(-)
diff --git a/tools/testing/selftests/arm64/tags_test.c b/tools/testing/selftests/arm64/tags_test.c
index 22a1b266e373..5701163460ef 100644
--- a/tools/testing/selftests/arm64/tags_test.c
+++ b/tools/testing/selftests/arm64/tags_test.c
@@ -14,15 +14,17 @@
int main(void)
{
static int tbi_enabled = 0;
- struct utsname *ptr, *tagged_ptr;
+ unsigned long tag = 0;
+ struct utsname *ptr;
int err;
if (prctl(PR_SET_TAGGED_ADDR_CTRL, PR_TAGGED_ADDR_ENABLE, 0, 0, 0) == 0)
tbi_enabled = 1;
ptr = (struct utsname *)malloc(sizeof(*ptr));
if (tbi_enabled)
- tagged_ptr = (struct utsname *)SET_TAG(ptr, 0x42);
- err = uname(tagged_ptr);
+ tag = 0x42;
+ ptr = (struct utsname *)SET_TAG(ptr, tag);
+ err = uname(ptr);
free(ptr);
return err;
--
2.23.0.rc1.153.gdeed80330f-goog
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