Use WARN() in drivers/base/

[linux-2.6-omap-h63xx.git] / ipc / mqueue.c

diff --git a/ipc/mqueue.c b/ipc/mqueue.c
index 94fd3b08fb77036d35ecd1a337785f1847fe1613..474984f9e0328a016b8496a6caa83e7f74655537 100644 (file)
--- a/ipc/mqueue.c
+++ b/ipc/mqueue.c
@@ -207,7 +207,7 @@ static int mqueue_get_sb(struct file_system_type *fs_type,
        return get_sb_single(fs_type, flags, data, mqueue_fill_super, mnt);
 }
 
-static void init_once(struct kmem_cache *cachep, void *foo)
+static void init_once(void *foo)
 {
        struct mqueue_inode_info *p = (struct mqueue_inode_info *) foo;
 
@@ -314,15 +314,11 @@ static int mqueue_unlink(struct inode *dir, struct dentry *dentry)
 *      through std routines)
 */
 static ssize_t mqueue_read_file(struct file *filp, char __user *u_data,
-                               size_t count, loff_t * off)
+                               size_t count, loff_t *off)
 {
        struct mqueue_inode_info *info = MQUEUE_I(filp->f_path.dentry->d_inode);
        char buffer[FILENT_SIZE];
-       size_t slen;
-       loff_t o;
-
-       if (!count)
-               return 0;
+       ssize_t ret;
 
        spin_lock(&info->lock);
        snprintf(buffer, sizeof(buffer),
@@ -335,21 +331,14 @@ static ssize_t mqueue_read_file(struct file *filp, char __user *u_data,
                        pid_vnr(info->notify_owner));
        spin_unlock(&info->lock);
        buffer[sizeof(buffer)-1] = '\0';
-       slen = strlen(buffer)+1;
-
-       o = *off;
-       if (o > slen)
-               return 0;
-
-       if (o + count > slen)
-               count = slen - o;
 
-       if (copy_to_user(u_data, buffer + o, count))
-               return -EFAULT;
+       ret = simple_read_from_buffer(u_data, count, off, buffer,
+                               strlen(buffer));
+       if (ret <= 0)
+               return ret;
 
-       *off = o + count;
        filp->f_path.dentry->d_inode->i_atime = filp->f_path.dentry->d_inode->i_ctime = CURRENT_TIME;
-       return count;
+       return ret;
 }
 
 static int mqueue_flush_file(struct file *filp, fl_owner_t id)
@@ -673,7 +662,7 @@ asmlinkage long sys_mq_open(const char __user *u_name, int oflag, mode_t mode,
        if (IS_ERR(name = getname(u_name)))
                return PTR_ERR(name);
 
-       fd = get_unused_fd();
+       fd = get_unused_fd_flags(O_CLOEXEC);
        if (fd < 0)
                goto out_putname;
 
@@ -709,7 +698,6 @@ asmlinkage long sys_mq_open(const char __user *u_name, int oflag, mode_t mode,
                goto out_putfd;
        }
 
-       set_close_on_exec(fd, 1);
        fd_install(fd, filp);
        goto out_upsem;
 
@@ -1055,7 +1043,7 @@ retry:
                        }
 
                        timeo = MAX_SCHEDULE_TIMEOUT;
-                       ret = netlink_attachskb(sock, nc, 0, &timeo, NULL);
+                       ret = netlink_attachskb(sock, nc, &timeo, NULL);
                        if (ret == 1)
                                goto retry;
                        if (ret) {