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wimax: wimax_msg_alloc() returns ERR_PTR not null

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wimax_msg_alloc() returns an ERR_PTR and not null.  I changed it to test
for ERR_PTR instead of null.  I also added a check in front of the
kfree() because kfree() can handle null but not ERR_PTR.

Signed-off-by: Dan Carpenter <error27@gmail.com>
This commit is contained in:
Dan Carpenter 2010-04-22 11:46:32 +02:00 committed by Inaky Perez-Gonzalez
parent d3e56c0ad8
commit 3e02a06ae3
1 changed files with 4 additions and 5 deletions
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9
drivers/net/wimax/i2400m/rx.c
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@ -300,17 +300,16 @@ void i2400m_rx_ctl_ack(struct i2400m *i2400m,
d_printf(1, dev, "Huh? waiter for command reply cancelled\n");
goto error_waiter_cancelled;
}
if (ack_skb == NULL) {
if (IS_ERR(ack_skb))
dev_err(dev, "CMD/GET/SET ack: cannot allocate SKB\n");
i2400m->ack_skb = ERR_PTR(-ENOMEM);
} else
i2400m->ack_skb = ack_skb;
i2400m->ack_skb = ack_skb;
spin_unlock_irqrestore(&i2400m->rx_lock, flags);
complete(&i2400m->msg_completion);
return;
error_waiter_cancelled:
kfree_skb(ack_skb);
if (!IS_ERR(ack_skb))
kfree_skb(ack_skb);
error_no_waiter:
spin_unlock_irqrestore(&i2400m->rx_lock, flags);
return;