staging: ozwpan: Return error, if PD is not connected.
Return error if we receive write(), while PD is not connected. Signed-off-by: Rupesh Gujare <rupesh.gujare@atmel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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@ -162,6 +162,8 @@ static ssize_t oz_cdev_write(struct file *filp, const char __user *buf,
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spin_unlock_bh(&g_cdev.lock);
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spin_unlock_bh(&g_cdev.lock);
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if (pd == NULL)
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if (pd == NULL)
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return -ENXIO;
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return -ENXIO;
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if (!(pd->state & OZ_PD_S_CONNECTED))
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return -EAGAIN;
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eb = &pd->elt_buff;
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eb = &pd->elt_buff;
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ei = oz_elt_info_alloc(eb);
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ei = oz_elt_info_alloc(eb);
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if (ei == NULL) {
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if (ei == NULL) {
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