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driver/sensor: fix deadlock about sensor_rpmsg

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task1:
nuttx/arch/arm/src/common/arm_blocktask.c:151
nxsem_wait
nuttx/arch/arm/src/../../../sched/semaphore/sem_wait.c:155 (discriminator 2)
sem_wait
nuttx/arch/arm/src/../../../sched/semaphore/sem_wait.c:273
nxmutex_lock.lto_priv.2
nuttx/include/nuttx/mutex.h:161
sensor_rpmsg_push_event_one
nuttx/arch/arm/src/../../../drivers/sensors/sensor_rpmsg.c:748
up_unblock_task
nuttx/arch/arm/src/common/arm_unblocktask.c:75 (discriminator 2)
sensor_rpmsg_push_event
nuttx/arch/arm/src/../../../drivers/sensors/sensor_rpmsg.c:858
write
orb_publish_multi
nuttx/arch/arm/src/../../../../apps/system/uorb/uORB/uORB.c:188

task2:
nxrmutex_lock.isra.0
sensor_read
nuttx/arch/arm/src/../../../drivers/sensors/sensor.c:753
sem_post
nuttx/arch/arm/src/../../../sched/semaphore/sem_post.c:224
nxmutex_unlock.lto_priv.1
nuttx/include/nuttx/mutex.h:259
sensor_rpmsg_push_event_one
nuttx/arch/arm/src/../../../drivers/sensors/sensor_rpmsg.c:787
nxmutex_unlock.lto_priv.1
nuttx/include/nuttx/mutex.h:259
nuttx/arch/arm/src/../../../drivers/sensors/sensor.c:969
sensor_rpmsg_alloc_stub
nuttx/arch/arm/src/../../../drivers/sensors/sensor_rpmsg.c:549
sensor_rpmsg_advack_handler

Signed-off-by: Jiuzhu Dong <dongjiuzhu1@xiaomi.com>
This commit is contained in:
Jiuzhu Dong 2022-07-04 11:08:30 +08:00 committed by Xiang Xiao
parent ad20bd4bb3
commit 78381f9fc4
1 changed files with 2 additions and 1 deletions
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3
drivers/sensors/sensor_rpmsg.c
View file

@ -541,13 +541,14 @@ sensor_rpmsg_alloc_stub(FAR struct sensor_rpmsg_dev_s *dev,
sensor_rpmsg_lock(dev);
list_add_tail(&dev->stublist, &stub->node);
sensor_rpmsg_unlock(dev);
if (dev->lower.persist)
{
sensor_rpmsg_push_event_one(dev, stub);
}
sensor_rpmsg_unlock(dev);
return stub;
}