[PATCH ARM] selftests, arm64: fix uninitialized symbol in tags_test.c

[Andrey Konovalov]

Fix tagged_ptr not being initialized when TBI is not enabled.

Dan Carpenter <dan.carpen...@oracle.com>
Signed-off-by: Andrey Konovalov <andreyk...@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