diff options
Diffstat (limited to 'drivers/staging/batman-adv/device.c')
| -rw-r--r-- | drivers/staging/batman-adv/device.c | 37 |
1 files changed, 22 insertions, 15 deletions
diff --git a/drivers/staging/batman-adv/device.c b/drivers/staging/batman-adv/device.c index 2f61500186f2..ad82ec4a4856 100644 --- a/drivers/staging/batman-adv/device.c +++ b/drivers/staging/batman-adv/device.c @@ -1,5 +1,5 @@ /* - * Copyright (C) 2007-2009 B.A.T.M.A.N. contributors: + * Copyright (C) 2007-2010 B.A.T.M.A.N. contributors: * * Marek Lindner * @@ -44,10 +44,7 @@ static struct device_client *device_client_hash[256]; void bat_device_init(void) { - int i; - - for (i = 0; i < 256; i++) - device_client_hash[i] = NULL; + memset(device_client_hash, 0, sizeof(device_client_hash)); } int bat_device_setup(void) @@ -60,7 +57,8 @@ int bat_device_setup(void) /* register our device - kernel assigns a free major number */ tmp_major = register_chrdev(0, DRIVER_DEVICE, &fops); if (tmp_major < 0) { - printk(KERN_ERR "batman-adv:Registering the character device failed with %d\n", + printk(KERN_ERR "batman-adv:" + "Registering the character device failed with %d\n", tmp_major); return 0; } @@ -68,7 +66,8 @@ int bat_device_setup(void) batman_class = class_create(THIS_MODULE, "batman-adv"); if (IS_ERR(batman_class)) { - printk(KERN_ERR "batman-adv:Could not register class 'batman-adv' \n"); + printk(KERN_ERR "batman-adv:" + "Could not register class 'batman-adv'\n"); return 0; } @@ -103,15 +102,17 @@ int bat_device_open(struct inode *inode, struct file *file) if (!device_client) return -ENOMEM; - for (i = 0; i < 256; i++) { + for (i = 0; i < ARRAY_SIZE(device_client_hash); i++) { if (!device_client_hash[i]) { device_client_hash[i] = device_client; break; } } - if (device_client_hash[i] != device_client) { - printk(KERN_ERR "batman-adv:Error - can't add another packet client: maximum number of clients reached \n"); + if (i == ARRAY_SIZE(device_client_hash)) { + printk(KERN_ERR "batman-adv:" + "Error - can't add another packet client: " + "maximum number of clients reached\n"); kfree(device_client); return -EXFULL; } @@ -212,7 +213,9 @@ ssize_t bat_device_write(struct file *file, const char __user *buff, unsigned long flags; if (len < sizeof(struct icmp_packet)) { - bat_dbg(DBG_BATMAN, "batman-adv:Error - can't send packet from char device: invalid packet size\n"); + bat_dbg(DBG_BATMAN, "batman-adv:" + "Error - can't send packet from char device: " + "invalid packet size\n"); return -EINVAL; } @@ -223,12 +226,16 @@ ssize_t bat_device_write(struct file *file, const char __user *buff, return -EFAULT; if (icmp_packet.packet_type != BAT_ICMP) { - bat_dbg(DBG_BATMAN, "batman-adv:Error - can't send packet from char device: got bogus packet type (expected: BAT_ICMP)\n"); + bat_dbg(DBG_BATMAN, "batman-adv:" + "Error - can't send packet from char device: " + "got bogus packet type (expected: BAT_ICMP)\n"); return -EINVAL; } if (icmp_packet.msg_type != ECHO_REQUEST) { - bat_dbg(DBG_BATMAN, "batman-adv:Error - can't send packet from char device: got bogus message type (expected: ECHO_REQUEST)\n"); + bat_dbg(DBG_BATMAN, "batman-adv:" + "Error - can't send packet from char device: " + "got bogus message type (expected: ECHO_REQUEST)\n"); return -EINVAL; } @@ -253,7 +260,7 @@ ssize_t bat_device_write(struct file *file, const char __user *buff, if (!orig_node->router) goto unlock; - batman_if = orig_node->batman_if; + batman_if = orig_node->router->if_incoming; memcpy(dstaddr, orig_node->router->addr, ETH_ALEN); spin_unlock_irqrestore(&orig_hash_lock, flags); @@ -261,7 +268,7 @@ ssize_t bat_device_write(struct file *file, const char __user *buff, if (!batman_if) goto dst_unreach; - if (batman_if->if_active != IF_ACTIVE) + if (batman_if->if_status != IF_ACTIVE) goto dst_unreach; memcpy(icmp_packet.orig, |