diff options
Diffstat (limited to 'net/batman-adv/icmp_socket.c')
| -rw-r--r-- | net/batman-adv/icmp_socket.c | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/net/batman-adv/icmp_socket.c b/net/batman-adv/icmp_socket.c index bde3cf747507..5874c0e84846 100644 --- a/net/batman-adv/icmp_socket.c +++ b/net/batman-adv/icmp_socket.c @@ -42,12 +42,16 @@ static int batadv_socket_open(struct inode *inode, struct file *file) unsigned int i; struct batadv_socket_client *socket_client; + if (!try_module_get(THIS_MODULE)) + return -EBUSY; + nonseekable_open(inode, file); socket_client = kmalloc(sizeof(*socket_client), GFP_KERNEL); - - if (!socket_client) + if (!socket_client) { + module_put(THIS_MODULE); return -ENOMEM; + } for (i = 0; i < ARRAY_SIZE(batadv_socket_client_hash); i++) { if (!batadv_socket_client_hash[i]) { @@ -59,6 +63,7 @@ static int batadv_socket_open(struct inode *inode, struct file *file) if (i == ARRAY_SIZE(batadv_socket_client_hash)) { pr_err("Error - can't add another packet client: maximum number of clients reached\n"); kfree(socket_client); + module_put(THIS_MODULE); return -EXFULL; } @@ -71,7 +76,6 @@ static int batadv_socket_open(struct inode *inode, struct file *file) file->private_data = socket_client; - batadv_inc_module_count(); return 0; } @@ -96,7 +100,7 @@ static int batadv_socket_release(struct inode *inode, struct file *file) spin_unlock_bh(&socket_client->lock); kfree(socket_client); - batadv_dec_module_count(); + module_put(THIS_MODULE); return 0; } |