diff options
Diffstat (limited to 'mm/swapfile.c')
| -rw-r--r-- | mm/swapfile.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/mm/swapfile.c b/mm/swapfile.c index 4d11f9d84666f..39aa9d1296120 100644 --- a/mm/swapfile.c +++ b/mm/swapfile.c @@ -428,14 +428,16 @@ int swap_type_of(dev_t device) { int i; - if (!device) - return -EINVAL; spin_lock(&swap_lock); for (i = 0; i < nr_swapfiles; i++) { struct inode *inode; if (!(swap_info[i].flags & SWP_WRITEOK)) continue; + if (!device) { + spin_unlock(&swap_lock); + return i; + } inode = swap_info->swap_file->f_dentry->d_inode; if (S_ISBLK(inode->i_mode) && device == MKDEV(imajor(inode), iminor(inode))) { |