Fixed the crashing of acf-can-listener when receiving other ACF packe…

…ts in parallel.

Signed-off-by: Naresh Nayak <[email protected]>

examples/acf-can/acf-can-listener.c

@@ -189,7 +189,7 @@ static int new_packet(int sk_fd, int can_socket) {
 
     if (res < 0 || res > MAX_PDU_SIZE) {
         perror("Failed to receive data");
-        return -1;
+        return 0;
     }
 
     if (use_udp) {
@@ -204,14 +204,14 @@ static int new_packet(int sk_fd, int can_socket) {
     res = Avtp_CommonHeader_GetField((Avtp_CommonHeader_t*)cf_pdu, AVTP_COMMON_HEADER_FIELD_SUBTYPE, &subtype);
     if (res < 0) {
         fprintf(stderr, "Failed to get subtype field: %d\n", res);
-        return -1;
+        return 0;
     }
 
     if (!((subtype == AVTP_SUBTYPE_NTSCF) ||
         (subtype == AVTP_SUBTYPE_TSCF))) {
         fprintf(stderr, "Subtype mismatch: expected %u or %u, got %"PRIu64". Dropping packet\n",
                 AVTP_SUBTYPE_NTSCF, AVTP_SUBTYPE_TSCF, subtype);
-        return -1;
+        return 0;
     }
 
     if(subtype == AVTP_SUBTYPE_TSCF){
@@ -228,7 +228,7 @@ static int new_packet(int sk_fd, int can_socket) {
 
         if (!is_valid_acf_packet(acf_pdu)) {
             fprintf(stderr, "Error: Invalid ACF packet.\n");
-            return -1;
+            return 0;
         }
 
         Avtp_Can_GetField((Avtp_Can_t*)acf_pdu, AVTP_CAN_FIELD_CAN_IDENTIFIER,
@@ -242,7 +242,7 @@ static int new_packet(int sk_fd, int can_socket) {
         Avtp_Can_GetField((Avtp_Can_t*)acf_pdu, AVTP_CAN_FIELD_EFF, &flag);
         if (can_id > 0x7FF && !flag) {
           fprintf(stderr, "Error: CAN ID is > 0x7FF but the EFF bit is not set.\n");
-          return -1;
+          return 0;
         }
         if (flag) can_id |= CAN_EFF_FLAG;