mm: fix refcounting in swapon

[pandora-kernel.git] / mm / swapfile.c

diff --git a/mm/swapfile.c b/mm/swapfile.c
index 07a458d..0341c57 100644 (file)
--- a/mm/swapfile.c
+++ b/mm/swapfile.c
@@ -1940,7 +1940,7 @@ SYSCALL_DEFINE2(swapon, const char __user *, specialfile, int, swap_flags)
 
        error = -EINVAL;
        if (S_ISBLK(inode->i_mode)) {
-               bdev = I_BDEV(inode);
+               bdev = bdgrab(I_BDEV(inode));
                error = blkdev_get(bdev, FMODE_READ | FMODE_WRITE | FMODE_EXCL,
                                   sys_swapon);
                if (error < 0) {