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x86, msr: Use file_inode(), not f_mapping->host 

As discussed in [1], exchange f_mapping->host with file_inode().  This
is a bug, but happens to be non-manifest in this case.

[1] http://lkml.kernel.org/r/20131007190357.GA13318@ZenIV.linux.org.uk

Signed-off-by: Andre Richter <andre.o.richter@gmail.com>
Link: http://lkml.kernel.org/r/1381224142-3267-1-git-send-email-andre.o.richter@gmail.com
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
This commit is contained in:
Andre Richter 2013-10-08 11:22:22 +02:00 committed by H. Peter Anvin
parent 49449c30c4
commit 1224987384
1 changed files with 1 additions and 1 deletions
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2
arch/x86/kernel/msr.c
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@ -46,7 +46,7 @@ static struct class *msr_class;
static loff_t msr_seek(struct file *file, loff_t offset, int orig)
{
loff_t ret;
struct inode *inode = file->f_mapping->host;
struct inode *inode = file_inode(file);
mutex_lock(&inode->i_mutex);
switch (orig) {