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USB HUB: Fix a deadlock that can occur if the HCD and the HUB try to share the high priority work queue. Now how work must be done on the low priority work queue.

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This commit is contained in:
Gregory Nutt
2015-04-29 08:32:17 -06:00
parent 60243e508e
commit 6d66546c31
2 changed files with 7 additions and 3 deletions
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arch/arm/src/lpc31xx/lpc31_ehci.c
+4 -2
View File
@@ -73,8 +73,10 @@
/* Configuration ***************************************************************/
/* Pre-requisites */
#ifndef CONFIG_SCHED_WORKQUEUE
#if !defined(CONFIG_SCHED_WORKQUEUE)
# error Work queue support is required (CONFIG_SCHED_WORKQUEUE)
#elif !defined(CONFIG_SCHED_HPWORK)
# error Hi-priority work queue support is required (CONFIG_SCHED_HPWORK)
#endif
/* Configurable number of Queue Head (QH) structures. The default is one per
@@ -2570,7 +2572,7 @@ static inline int lpc31_asynch_setup(struct lpc31_rhport_s *rhport,
int ret = -ENODEV;
DEBUGASSERT(rhport && epinfo && !epinfo->iocwait &&
epinfo->callback == NULL);
callback != NULL && epinfo->callback == NULL);
/* Is the device still connected? */
arch/arm/src/sama5/sam_ehci.c
+3 -1
View File
@@ -73,8 +73,10 @@
/* Configuration ***************************************************************/
/* Pre-requisites */
#ifndef CONFIG_SCHED_WORKQUEUE
#if !defined(CONFIG_SCHED_WORKQUEUE)
# error Work queue support is required (CONFIG_SCHED_WORKQUEUE)
#elif !defined(CONFIG_SCHED_HPWORK)
# error Hi-priority work queue support is required (CONFIG_SCHED_HPWORK)
#endif
/* Configurable number of Queue Head (QH) structures. The default is one per