From: Jan Kiszka <jan.kiszka@web.de>
It seems that there is a gremlin sleeping in net/core/netpoll.c:find_skb().
Even if no more buffers are available through "skbs", "skb" is
dereferenced anyway. The tiny patch should fix it.
Signed-off-by: Andrew Morton <akpm@osdl.org>
---
25-akpm/net/core/netpoll.c | 7 ++++---
1 files changed, 4 insertions(+), 3 deletions(-)
diff -puN net/core/netpoll.c~null-pointer-bug-in-netpollc net/core/netpoll.c
--- 25/net/core/netpoll.c~null-pointer-bug-in-netpollc 2005-03-19 22:41:22.000000000 -0800
+++ 25-akpm/net/core/netpoll.c 2005-03-19 22:41:22.000000000 -0800
@@ -165,10 +165,11 @@ repeat:
if (!skb) {
spin_lock_irqsave(&skb_list_lock, flags);
skb = skbs;
- if (skb)
+ if (skb) {
skbs = skb->next;
- skb->next = NULL;
- nr_skbs--;
+ skb->next = NULL;
+ nr_skbs--;
+ }
spin_unlock_irqrestore(&skb_list_lock, flags);
}
_