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driver/sensor: Fetch(with O_NONBLOCK) will directly return.

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when sensor is disable.

Change-Id: I02c02aa447ee0b0d681082b4209ecd36e10f2547
Signed-off-by: Jiuzhu Dong <dongjiuzhu1@xiaomi.com>
This commit is contained in:
Jiuzhu Dong 2021-02-07 17:13:31 +08:00 committed by Alan Carvalho de Assis
parent 54ea96da6b
commit 46ea549630
1 changed files with 7 additions and 2 deletions
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9
drivers/sensors/sensor.c
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@ -273,6 +273,11 @@ static ssize_t sensor_read(FAR struct file *filep, FAR char *buffer,
return ret; return ret;
} }
} }
else if (!upper->enabled)
{
ret = -EAGAIN;
goto out;
}
ret = lower->ops->fetch(lower, buffer, len); ret = lower->ops->fetch(lower, buffer, len);
} }
@ -289,7 +294,7 @@ static ssize_t sensor_read(FAR struct file *filep, FAR char *buffer,
if (filep->f_oflags & O_NONBLOCK) if (filep->f_oflags & O_NONBLOCK)
{ {
ret = -EAGAIN; ret = -EAGAIN;
goto again; goto out;
} }
else else
{ {
@ -324,7 +329,7 @@ static ssize_t sensor_read(FAR struct file *filep, FAR char *buffer,
} }
} }
again: out:
nxsem_post(&upper->exclsem); nxsem_post(&upper->exclsem);
return ret; return ret;
} }