diff options
Diffstat (limited to 'drivers/dahdi/dahdi_dynamic_eth.c')
| -rw-r--r-- | drivers/dahdi/dahdi_dynamic_eth.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/dahdi/dahdi_dynamic_eth.c b/drivers/dahdi/dahdi_dynamic_eth.c index f68a4ea..ecf46ea 100644 --- a/drivers/dahdi/dahdi_dynamic_eth.c +++ b/drivers/dahdi/dahdi_dynamic_eth.c @@ -71,6 +71,8 @@ static struct dahdi_span *ztdeth_getspan(unsigned char *addr, unsigned short sub if (z) span = z->span; spin_unlock_irqrestore(&zlock, flags); + if (!span || !test_bit(DAHDI_FLAGBIT_REGISTERED, &span->flags)) + return NULL; return span; } |