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serial: Check event ptr before using. 

This avoids a NULL dereference when called twice.
This commit is contained in:
Bert Vermeulen 2015-08-16 20:03:10 +02:00
parent 661cc2ec46
commit 2634b77812
1 changed files with 3 additions and 0 deletions
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3
src/serial.c
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@ -843,6 +843,9 @@ SR_PRIV int serial_source_remove(struct sr_session *session,
{ {
unsigned int i; unsigned int i;
if (!serial->event_set)
return SR_OK;
for (i = 0; i < serial->event_set->count; i++) for (i = 0; i < serial->event_set->count; i++)
if (sr_session_source_remove_pollfd(session, &serial->pollfds[i]) != SR_OK) if (sr_session_source_remove_pollfd(session, &serial->pollfds[i]) != SR_OK)
return SR_ERR; return SR_ERR;