1 files changed, 9 insertions, 1 deletions

diff --git a/drivers/block/paride/pcd.c b/drivers/block/paride/pcd.c
index daba7a62a663..76f8565e1e8d 100644
--- a/drivers/block/paride/pcd.c
+++ b/drivers/block/paride/pcd.c
@@ -225,13 +225,21 @@ static char *pcd_buf;		/* buffer for request in progress */
 static int pcd_block_open(struct block_device *bdev, fmode_t mode)
 {
         struct pcd_unit *cd = bdev->bd_disk->private_data;
-        return cdrom_open(&cd->info, bdev, mode);
+        int ret;
+
+        lock_kernel();
+        ret = cdrom_open(&cd->info, bdev, mode);
+        unlock_kernel();
+
+        return ret;
 }
 
 static int pcd_block_release(struct gendisk *disk, fmode_t mode)
 {
         struct pcd_unit *cd = disk->private_data;
+        lock_kernel();
         cdrom_release(&cd->info, mode);
+        unlock_kernel();
         return 0;
 }