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Code Issues Releases Wiki Activity

Add device checking when set_device.

This commit is contained in:
Bernard Xiong 2013-07-05 21:02:47 +08:00
parent ca71f33303
commit b0c1f8a79b
1 changed files with 10 additions and 5 deletions
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15
components/finsh/shell.c
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@ -116,7 +116,16 @@ void finsh_set_device(const char* device_name)
RT_ASSERT(shell != RT_NULL);
dev = rt_device_find(device_name);
if (dev != RT_NULL && rt_device_open(dev, RT_DEVICE_OFLAG_RDWR) == RT_EOK)
if (dev == RT_NULL)
{
rt_kprintf("finsh: can not find device: %s\n", device_name);
return;
}
/* check whether it's a same device */
if (dev == shell->device) return;
/* open this device and set the new device in finsh shell */
if (rt_device_open(dev, RT_DEVICE_OFLAG_RDWR) == RT_EOK)
{
if (shell->device != RT_NULL)
{
@ -127,10 +136,6 @@ void finsh_set_device(const char* device_name)
shell->device = dev;
rt_device_set_rx_indicate(dev, finsh_rx_ind);
}
else
{
rt_kprintf("finsh: can not find device:%s\n", device_name);
}
}
/**