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driver core fix for 4.11-rc4 

Here is a single kernfs fix for 4.11-rc4 that resolves a reported issue.
 
 It has been in linux-next with no reported issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'driver-core-4.11-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core

Pull driver core fix from Greg KH:
 "Here is a single kernfs fix for 4.11-rc4 that resolves a reported
  issue.

  It has been in linux-next with no reported issues"

* tag 'driver-core-4.11-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core:
  kernfs: Check KERNFS_HAS_RELEASE before calling kernfs_release_file()
This commit is contained in:
Linus Torvalds 2017-03-26 11:05:42 -07:00
parent f1638fc65e 966fa72a71
commit 9e54ef9da5
1 changed files with 2 additions and 1 deletions
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3
fs/kernfs/file.c
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@ -809,7 +809,8 @@ void kernfs_drain_open_files(struct kernfs_node *kn)
if (kn->flags & KERNFS_HAS_MMAP) if (kn->flags & KERNFS_HAS_MMAP)
unmap_mapping_range(inode->i_mapping, 0, 0, 1); unmap_mapping_range(inode->i_mapping, 0, 0, 1);
kernfs_release_file(kn, of); if (kn->flags & KERNFS_HAS_RELEASE)
kernfs_release_file(kn, of);
} }
mutex_unlock(&kernfs_open_file_mutex); mutex_unlock(&kernfs_open_file_mutex);