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A single BUG_ON fix for a condition that could happen for machines with 

certain hardware installed.
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sfr/next-fixes

Pull powerpc bugfix from Stephen Rothwell:
 "A single BUG_ON fix for a condition that could happen for machines
  with certain hardware installed."

* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sfr/next-fixes:
  powerpc: pSeries_lpar_hpte_remove fails from Adjunct partition being performed before the ANDCOND test
This commit is contained in:
Linus Torvalds 2013-04-08 16:10:43 -07:00
parent 79e5f05edc 9fb2640159
commit f011a08c80
1 changed files with 7 additions and 1 deletions
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8
arch/powerpc/platforms/pseries/lpar.c
View File

@ -186,7 +186,13 @@ static long pSeries_lpar_hpte_remove(unsigned long hpte_group)
(0x1UL << 4), &dummy1, &dummy2);
if (lpar_rc == H_SUCCESS)
return i;
BUG_ON(lpar_rc != H_NOT_FOUND);
/*
* The test for adjunct partition is performed before the
* ANDCOND test. H_RESOURCE may be returned, so we need to
* check for that as well.
*/
BUG_ON(lpar_rc != H_NOT_FOUND && lpar_rc != H_RESOURCE);
slot_offset++;
slot_offset &= 0x7;