net,via-rhine: Fix tx_timeout handling
authorRichard Weinberger <richard@nod.at>
Tue, 14 Jan 2014 21:46:36 +0000 (22:46 +0100)
committerDavid S. Miller <davem@davemloft.net>
Wed, 15 Jan 2014 23:21:08 +0000 (15:21 -0800)
rhine_reset_task() misses to disable the tx scheduler upon reset,
this can lead to a crash if work is still scheduled while we're resetting
the tx queue.

Fixes:
[   93.591707] BUG: unable to handle kernel NULL pointer dereference at 0000004c
[   93.595514] IP: [<c119d10d>] rhine_napipoll+0x491/0x6

Signed-off-by: Richard Weinberger <richard@nod.at>
Signed-off-by: David S. Miller <davem@davemloft.net>
drivers/net/ethernet/via/via-rhine.c

index cce6c4bc556a97e03fbe5f1648396aed6bf7070a..ef312bc6b8658deabae28d179c39237564b8ede4 100644 (file)
@@ -1618,6 +1618,7 @@ static void rhine_reset_task(struct work_struct *work)
                goto out_unlock;
 
        napi_disable(&rp->napi);
+       netif_tx_disable(dev);
        spin_lock_bh(&rp->lock);
 
        /* clear all descriptors */