p54: fix oops caused by bad eeproms

This patch fixes a bug that could occur, if it the eeprom is incomplete or partly corrupted.

BUG: unable to handle kernel NULL pointer dereference at 00000008
IP: p54_assign_address+0x108/0x15d [p54common]
Oops: 0002 [#1] SMP
Pid: 12988, comm: phy1 Tainted: P W 2.6.28-rc6-wl #3
RIP: 0010: p54_assign_address+0x108/0x15d [p54common]
[...]
Call Trace:
p54_alloc_skb+0xa3/0xc0 [p54common]
p54_scan+0x37/0x204 [p54common]
[...]

Signed-off-by: Christian Lamparter <[e-mail]>
Signed-off-by: John W. Linville <[e-mail]>

drivers/net/wireless/p54/p54common.c

···
 
  err:
 	printk(KERN_ERR "%s: frequency change failed\n", wiphy_name(dev->wiphy));
-	kfree_skb(skb);
+	p54_free_skb(dev, skb);
 	return -EINVAL;
 }