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[AX.25]: Fix unchecked rose_add_loopback_neigh uses

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rose_add_loopback_neigh uses kmalloc and the callers were ignoring the
error value.  Rewrite to let the caller deal with the allocation.  This
allows the use of static allocation of kmalloc use entirely.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Ralf Baechle
2006-12-14 15:52:13 -08:00
committed by David S. Miller
parent a159aaa328
commit a3d384029a
3 changed files with 26 additions and 28 deletions
Download Patch File Download Diff File Expand all files Collapse all files
net/rose/rose_loopback.c
+3 -2
View File
@@ -79,7 +79,8 @@ static void rose_loopback_timer(unsigned long param)
skb->h.raw = skb->data;
if ((sk = rose_find_socket(lci_o, rose_loopback_neigh)) != NULL) {
sk = rose_find_socket(lci_o, &rose_loopback_neigh);
if (sk) {
if (rose_process_rx_frame(sk, skb) == 0)
kfree_skb(skb);
continue;
@@ -87,7 +88,7 @@ static void rose_loopback_timer(unsigned long param)
if (frametype == ROSE_CALL_REQUEST) {
if ((dev = rose_dev_get(dest)) != NULL) {
if (rose_rx_call_request(skb, dev, rose_loopback_neigh, lci_o) == 0)
if (rose_rx_call_request(skb, dev, &rose_loopback_neigh, lci_o) == 0)
kfree_skb(skb);
} else {
kfree_skb(skb);
net/rose/rose_route.c
+21 -24
View File
@@ -46,7 +46,7 @@ static DEFINE_SPINLOCK(rose_neigh_list_lock);
static struct rose_route *rose_route_list;
static DEFINE_SPINLOCK(rose_route_list_lock);
struct rose_neigh *rose_loopback_neigh;
struct rose_neigh rose_loopback_neigh;
/*
* Add a new route to a node, and in the process add the node and the
@@ -361,33 +361,30 @@ out:
/*
* Add the loopback neighbour.
*/
int rose_add_loopback_neigh(void)
void rose_add_loopback_neigh(void)
{
if ((rose_loopback_neigh = kmalloc(sizeof(struct rose_neigh), GFP_ATOMIC)) == NULL)
return -ENOMEM;
struct rose_neigh *sn = &rose_loopback_neigh;
rose_loopback_neigh->callsign = null_ax25_address;
rose_loopback_neigh->digipeat = NULL;
rose_loopback_neigh->ax25 = NULL;
rose_loopback_neigh->dev = NULL;
rose_loopback_neigh->count = 0;
rose_loopback_neigh->use = 0;
rose_loopback_neigh->dce_mode = 1;
rose_loopback_neigh->loopback = 1;
rose_loopback_neigh->number = rose_neigh_no++;
rose_loopback_neigh->restarted = 1;
sn->callsign = null_ax25_address;
sn->digipeat = NULL;
sn->ax25 = NULL;
sn->dev = NULL;
sn->count = 0;
sn->use = 0;
sn->dce_mode = 1;
sn->loopback = 1;
sn->number = rose_neigh_no++;
sn->restarted = 1;
skb_queue_head_init(&rose_loopback_neigh->queue);
skb_queue_head_init(&sn->queue);
init_timer(&rose_loopback_neigh->ftimer);
init_timer(&rose_loopback_neigh->t0timer);
init_timer(&sn->ftimer);
init_timer(&sn->t0timer);
spin_lock_bh(&rose_neigh_list_lock);
rose_loopback_neigh->next = rose_neigh_list;
rose_neigh_list = rose_loopback_neigh;
sn->next = rose_neigh_list;
rose_neigh_list = sn;
spin_unlock_bh(&rose_neigh_list_lock);
return 0;
}
/*
@@ -421,13 +418,13 @@ int rose_add_loopback_node(rose_address *address)
rose_node->mask = 10;
rose_node->count = 1;
rose_node->loopback = 1;
rose_node->neighbour[0] = rose_loopback_neigh;
rose_node->neighbour[0] = &rose_loopback_neigh;
/* Insert at the head of list. Address is always mask=10 */
rose_node->next = rose_node_list;
rose_node_list = rose_node;
rose_loopback_neigh->count++;
rose_loopback_neigh.count++;
out:
spin_unlock_bh(&rose_node_list_lock);
@@ -458,7 +455,7 @@ void rose_del_loopback_node(rose_address *address)
rose_remove_node(rose_node);
rose_loopback_neigh->count--;
rose_loopback_neigh.count--;
out:
spin_unlock_bh(&rose_node_list_lock);