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authorThomas Gubler <thomasgubler@gmail.com>2014-12-10 17:02:49 +0100
committerThomas Gubler <thomasgubler@gmail.com>2014-12-10 17:02:49 +0100
commitf0ad2c9ef55dc2508e777384f8d0496042ade9e8 (patch)
treef1213464b192af2cfdceb0da6cc48f2c73034ff3 /src/platforms/px4_subscriber.h
parentda4cfad3c2dc14f17ccf0e9a8ce41309b76964e4 (diff)
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px4 subscriber: uorb: check if callback null at correct location
Diffstat (limited to 'src/platforms/px4_subscriber.h')
-rw-r--r--src/platforms/px4_subscriber.h10
1 files changed, 6 insertions, 4 deletions
diff --git a/src/platforms/px4_subscriber.h b/src/platforms/px4_subscriber.h
index 5d0120f90..45cb650b2 100644
--- a/src/platforms/px4_subscriber.h
+++ b/src/platforms/px4_subscriber.h
@@ -115,10 +115,6 @@ public:
*/
void update()
{
- if (_callback == nullptr) {
- return;
- }
-
if (!uORB::Subscription<M>::updated()) {
/* Topic not updated, do not call callback */
return;
@@ -127,6 +123,12 @@ public:
/* get latest data */
uORB::Subscription<M>::update();
+
+ /* Check if there is a callback */
+ if (_callback == nullptr) {
+ return;
+ }
+
/* Call callback which performs actions based on this data */
_callback(uORB::Subscription<M>::getData());