[PATCH] USB: add driver for funsoft usb serial device

[powerpc.git] / drivers / block / loop.c

diff --git a/drivers/block/loop.c b/drivers/block/loop.c
index 5f6d1a5..9c3b94e 100644 (file)
--- a/drivers/block/loop.c
+++ b/drivers/block/loop.c
@@ -839,7 +839,9 @@ static int loop_set_fd(struct loop_device *lo, struct file *lo_file,
 
        set_blocksize(bdev, lo_blocksize);
 
-       kernel_thread(loop_thread, lo, CLONE_KERNEL);
+       error = kernel_thread(loop_thread, lo, CLONE_KERNEL);
+       if (error < 0)
+               goto out_putf;
        wait_for_completion(&lo->lo_done);
        return 0;
 
@@ -1144,7 +1146,7 @@ static int lo_ioctl(struct inode * inode, struct file * file,
        struct loop_device *lo = inode->i_bdev->bd_disk->private_data;
        int err;
 
-       down(&lo->lo_ctl_mutex);
+       mutex_lock(&lo->lo_ctl_mutex);
        switch (cmd) {
        case LOOP_SET_FD:
                err = loop_set_fd(lo, file, inode->i_bdev, arg);
@@ -1170,7 +1172,7 @@ static int lo_ioctl(struct inode * inode, struct file * file,
        default:
                err = lo->ioctl ? lo->ioctl(lo, cmd, arg) : -EINVAL;
        }
-       up(&lo->lo_ctl_mutex);
+       mutex_unlock(&lo->lo_ctl_mutex);
        return err;
 }
 
@@ -1178,9 +1180,9 @@ static int lo_open(struct inode *inode, struct file *file)
 {
        struct loop_device *lo = inode->i_bdev->bd_disk->private_data;
 
-       down(&lo->lo_ctl_mutex);
+       mutex_lock(&lo->lo_ctl_mutex);
        lo->lo_refcnt++;
-       up(&lo->lo_ctl_mutex);
+       mutex_unlock(&lo->lo_ctl_mutex);
 
        return 0;
 }
@@ -1189,9 +1191,9 @@ static int lo_release(struct inode *inode, struct file *file)
 {
        struct loop_device *lo = inode->i_bdev->bd_disk->private_data;
 
-       down(&lo->lo_ctl_mutex);
+       mutex_lock(&lo->lo_ctl_mutex);
        --lo->lo_refcnt;
-       up(&lo->lo_ctl_mutex);
+       mutex_unlock(&lo->lo_ctl_mutex);
 
        return 0;
 }
@@ -1233,12 +1235,12 @@ int loop_unregister_transfer(int number)
        xfer_funcs[n] = NULL;
 
        for (lo = &loop_dev[0]; lo < &loop_dev[max_loop]; lo++) {
-               down(&lo->lo_ctl_mutex);
+               mutex_lock(&lo->lo_ctl_mutex);
 
                if (lo->lo_encryption == xfer)
                        loop_release_xfer(lo);
 
-               up(&lo->lo_ctl_mutex);
+               mutex_unlock(&lo->lo_ctl_mutex);
        }
 
        return 0;
@@ -1285,7 +1287,7 @@ static int __init loop_init(void)
                lo->lo_queue = blk_alloc_queue(GFP_KERNEL);
                if (!lo->lo_queue)
                        goto out_mem4;
-               init_MUTEX(&lo->lo_ctl_mutex);
+               mutex_init(&lo->lo_ctl_mutex);
                init_completion(&lo->lo_done);
                init_completion(&lo->lo_bh_done);
                lo->lo_number = i;
@@ -1307,7 +1309,7 @@ static int __init loop_init(void)
 
 out_mem4:
        while (i--)
-               blk_put_queue(loop_dev[i].lo_queue);
+               blk_cleanup_queue(loop_dev[i].lo_queue);
        devfs_remove("loop");
        i = max_loop;
 out_mem3:
@@ -1328,7 +1330,7 @@ static void loop_exit(void)
 
        for (i = 0; i < max_loop; i++) {
                del_gendisk(disks[i]);
-               blk_put_queue(loop_dev[i].lo_queue);
+               blk_cleanup_queue(loop_dev[i].lo_queue);
                put_disk(disks[i]);
        }
        devfs_remove("loop");