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Panic on RTEMS_FAST_MUTEX network semaphore claim/release.

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Fix the code to panic rather than perform a bad access if the network
semaphore is accessed without the stack being intialised.

Closes #2229.
This commit is contained in:
Chris Johns
2014-12-22 11:50:31 +11:00
committed by Gedare Bloom
parent 9d090fb70a
commit ee87007748
1 changed files with 8 additions and 1 deletions
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9
cpukit/libnetworking/rtems/rtems_glue.c
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@@ -117,9 +117,12 @@ uint32_t
rtems_bsdnet_semaphore_release_recursive(void) rtems_bsdnet_semaphore_release_recursive(void)
{ {
#ifdef RTEMS_FAST_MUTEX #ifdef RTEMS_FAST_MUTEX
uint32_t nest_count = the_networkSemaphore->Core_control.mutex.nest_count; uint32_t nest_count;
uint32_t i; uint32_t i;
nest_count =
the_networkSemaphore ?
the_networkSemaphore->Core_control.mutex.nest_count : 0;
for (i = 0; i < nest_count; ++i) { for (i = 0; i < nest_count; ++i) {
rtems_bsdnet_semaphore_release(); rtems_bsdnet_semaphore_release();
} }
@@ -379,6 +382,8 @@ rtems_bsdnet_semaphore_obtain (void)
_Thread_Disable_dispatch(); _Thread_Disable_dispatch();
#endif #endif
_ISR_Disable (level); _ISR_Disable (level);
if (!the_networkSemaphore)
rtems_panic ("rtems-net: network sema obtain: network not initialised\n");
executing = _Thread_Executing; executing = _Thread_Executing;
_CORE_mutex_Seize ( _CORE_mutex_Seize (
&the_networkSemaphore->Core_control.mutex, &the_networkSemaphore->Core_control.mutex,
@@ -414,6 +419,8 @@ rtems_bsdnet_semaphore_release (void)
int i; int i;
_Thread_Disable_dispatch(); _Thread_Disable_dispatch();
if (!the_networkSemaphore)
rtems_panic ("rtems-net: network sema obtain: network not initialised\n");
i = _CORE_mutex_Surrender ( i = _CORE_mutex_Surrender (
&the_networkSemaphore->Core_control.mutex, &the_networkSemaphore->Core_control.mutex,
networkSemaphore, networkSemaphore,