direct-io.hg

changeset 7553:8e1bfcb901e5

Once grant refs run out, netfront prints a nice message, but doesn't set
err properly to notify the caller, and the domU crashes. (See bug 183 for
details).

Signed-off-by: Jim Dykman <dykman@us.ibm.com>
author kaf24@firebug.cl.cam.ac.uk
date Sun Oct 30 16:43:05 2005 +0100 (2005-10-30)
parents c7006e46cd06
children 32695e99cfc8
files linux-2.6-xen-sparse/drivers/xen/netfront/netfront.c
line diff
     1.1 --- a/linux-2.6-xen-sparse/drivers/xen/netfront/netfront.c	Sun Oct 30 16:40:05 2005 +0100
     1.2 +++ b/linux-2.6-xen-sparse/drivers/xen/netfront/netfront.c	Sun Oct 30 16:43:05 2005 +0100
     1.3 @@ -877,6 +877,7 @@ static int create_netdev(int handle, str
     1.4  	if (gnttab_alloc_grant_references(NETIF_TX_RING_SIZE,
     1.5  					  &np->gref_tx_head) < 0) {
     1.6  		printk(KERN_ALERT "#### netfront can't alloc tx grant refs\n");
     1.7 +		err = -ENOMEM;
     1.8  		goto exit;
     1.9  	}
    1.10  	/* A grant for every rx ring slot */
    1.11 @@ -884,6 +885,7 @@ static int create_netdev(int handle, str
    1.12  					  &np->gref_rx_head) < 0) {
    1.13  		printk(KERN_ALERT "#### netfront can't alloc rx grant refs\n");
    1.14  		gnttab_free_grant_references(np->gref_tx_head);
    1.15 +		err = -ENOMEM;
    1.16  		goto exit;
    1.17  	}
    1.18