[BlueZ PATCH] mgmt-tester: Fix null dereference issue reported by scan-build

[Tedd Ho-Jeong An <hj.tedd.an@xxxxxxxxx>]

From: Tedd Ho-Jeong An <tedd.an@xxxxxxxxx>

This patch fixes the null dereference reported by the scan-build.

tools/mgmt-tester.c:12025:28: warning: Access to field 'cap_len' results
in a dereference of a null pointer (loaded from variable 'rp')
[core.NullDereference]

        if (sizeof(rp->cap_len) + rp->cap_len != length) {
                                  ^~~~~~~~~~~
---
 tools/mgmt-tester.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/tools/mgmt-tester.c b/tools/mgmt-tester.c
index f45a6c015..6018327f1 100644
--- a/tools/mgmt-tester.c
+++ b/tools/mgmt-tester.c
@@ -12020,12 +12020,14 @@ static void read_50_controller_cap_complete(uint8_t status, uint16_t length,
 		tester_warn("Failed to read advertising features: %s (0x%02x)",
 						mgmt_errstr(status), status);
 		tester_test_failed();
+		return;
 	}
 
 	if (sizeof(rp->cap_len) + rp->cap_len != length) {
 		tester_warn("Controller capabilities malformed, size %zu != %u",
 				sizeof(rp->cap_len) + rp->cap_len, length);
 		tester_test_failed();
+		return;
 	}
 
 	while (offset < rp->cap_len) {
-- 
2.34.1