livepatch: Reorder to use before freeing a pointer

From: Tom Rix <[email protected]>

Clang static analysis reports this issue livepatch-shadow-fix1.c:113:2: warning: Use of
memory after it is freed
pr_info("%s: dummy @ %p, prevented leak @ %p\n", ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

The pointer is freed in the previous statement.
Reorder the pr_info to report before the free.

Signed-off-by Tom Rix <[email protected]>

---
 samples/livepatch/livepatch-shadow-fix1.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

samples/livepatch/livepatch-shadow-fix1.c +1 -1

index 918ce17b43fda..6701641bf12d4 100644
@@ -109,9 +109,9 @@ static void livepatch_fix1_dummy_leak_dtor(void *obj, void *shadow_data)
 	void *d = obj;
 	int **shadow_leak = shadow_data;
 
-	kfree(*shadow_leak);
 	pr_info("%s: dummy @ %p, prevented leak @ %p\n",
 			 __func__, d, *shadow_leak);
+	kfree(*shadow_leak);
 }
 
 static void livepatch_fix1_dummy_free(struct dummy *d)

Signature · 1 line

2.26.3