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staging: ozwpan: Fix error checking while transmitting frame. 

Make sure that we return negative value if oz_build_frame()
returns NULL.

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 2013-08-23 18:33:32 +01:00 committed by Greg Kroah-Hartman
parent 4882ad9561
commit 37bc8f7856
1 changed files with 4 additions and 4 deletions
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8
drivers/staging/ozwpan/ozpd.c
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@ -618,14 +618,14 @@ static int oz_send_next_queued_frame(struct oz_pd *pd, int more_data)
pd->last_sent_frame = e;
skb = oz_build_frame(pd, f);
spin_unlock(&pd->tx_frame_lock);
if (!skb)
return -1;
if (more_data)
oz_set_more_bit(skb);
oz_dbg(TX_FRAMES, "TX frame PN=0x%x\n", f->hdr.pkt_num);
if (skb) {
if (dev_queue_xmit(skb) < 0)
return -1;
if (dev_queue_xmit(skb) < 0)
return -1;
}
return 0;
}