Merge tag 'please-pull-mce-f-bit' of git://git.kernel.org/pub/scm/linux/kernel/git/ras/ras into x86/ras

Pull MCE-uncorrected-error fix from Tony Luck:

 "Bit 12 may or may not be set in MCi_STATUS.MCACOD when
  an uncorrected error is reported. Ignore it when checking
  error signatures."

Signed-off-by: Ingo Molnar <mingo@kernel.org>

1 files changed, 2 insertions, 1 deletions

diff --git a/mm/shmem.c b/mm/shmem.c
index a87990cf9f94..8335dbd3fc35 100644
--- a/mm/shmem.c
+++ b/mm/shmem.c
@@ -1798,7 +1798,8 @@ static loff_t shmem_file_llseek(struct file *file, loff_t offset, int whence)
                 }
         }
 
-        offset = vfs_setpos(file, offset, MAX_LFS_FILESIZE);
+        if (offset >= 0)
+                offset = vfs_setpos(file, offset, MAX_LFS_FILESIZE);
         mutex_unlock(&inode->i_mutex);
         return offset;
 }