From fe20a273bb3979d9e806d828486633249d073ede Mon Sep 17 00:00:00 2001
From: Christopher Peplin <chris.peplin@rhubarbtech.com>
Date: Thu, 2 Jan 2014 12:10:14 -0500
Subject: [PATCH] Avoid hitting a NULL pointer when using callbacks.
---
src/isotp/receive.c | 4 +++-
src/isotp/send.c | 4 +++-
2 files changed, 6 insertions(+), 2 deletions(-)
diff --git a/src/isotp/receive.c b/src/isotp/receive.c
index fa96156..1692f8d 100644
--- a/src/isotp/receive.c
+++ b/src/isotp/receive.c
@@ -6,7 +6,9 @@ bool isotp_handle_single_frame(IsoTpHandle* handle, IsoTpMessage* message) {
}
void isotp_complete_receive(IsoTpHandle* handle, IsoTpMessage* message) {
- handle->receive_handle.message_received_callback(message);
+ if(handle->receive_handle.message_received_callback != NULL) {
+ handle->receive_handle.message_received_callback(message);
+ }
}
IsoTpHandle isotp_receive(IsoTpShims* shims,
diff --git a/src/isotp/send.c b/src/isotp/send.c
index 6cce5c9..85e3574 100644
--- a/src/isotp/send.c
+++ b/src/isotp/send.c
@@ -6,7 +6,9 @@
void isotp_complete_send(IsoTpShims* shims, IsoTpMessage* message,
bool status, IsoTpMessageSentHandler callback) {
- callback(message, status);
+ if(callback != NULL) {
+ callback(message, status);
+ }
}
IsoTpHandle isotp_send_single_frame(IsoTpShims* shims, IsoTpMessage* message,
--
2.16.6