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staging: ozwpan: Return error, if PD is not connected.

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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>
This commit is contained in:
Rupesh Gujare 2013-08-28 12:43:16 +01:00 committed by Greg Kroah-Hartman
parent b93d85f007
commit 8503f9016f
1 changed files with 2 additions and 0 deletions
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2
drivers/staging/ozwpan/ozcdev.c
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@ -162,6 +162,8 @@ static ssize_t oz_cdev_write(struct file *filp, const char __user *buf,
spin_unlock_bh(&g_cdev.lock);
if (pd == NULL)
return -ENXIO;
if (!(pd->state & OZ_PD_S_CONNECTED))
return -EAGAIN;
eb = &pd->elt_buff;
ei = oz_elt_info_alloc(eb);
if (ei == NULL) {