mm/damon/tests/sysfs-kunit: fix use after free on error path

Re-order these frees to avoid dereferencing "sysfs_target" after it has
been freed.

Link: https://lkml.kernel.org/r/aSBq5uSPIqsqH8zO@stanley.mountain
Fixes: ee13169 ("mm/damon/tests/sysfs-kunit: handle alloc failures on damon_sysfs_test_add_targets()")
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Reviewed-by: SeongJae Park <sj@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

Author: Dan Carpenter

mm/damon/tests/sysfs-kunit.h

@@ -76,8 +76,8 @@ static void damon_sysfs_test_add_targets(struct kunit *test)
 	if (!ctx) {
 		kfree(sysfs_targets->targets_arr);
 		kfree(sysfs_targets);
-		kfree(sysfs_target);
 		kfree(sysfs_target->regions);
+		kfree(sysfs_target);
 		kunit_skip(test, "ctx alloc fail");
 	}