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parisc: fix wrong page aligned size calculation in ioremapping code

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parisc __ioremap(): fix off-by-one error in page alignment of allocation
size for sizes where size%PAGE_SIZE==1.

Signed-off-by: Florian Zumbiehl <florz@florz.de>
Cc: Kyle McMartin <kyle@mcmartin.ca>
Acked-by: Helge Deller <deller@gmx.de>
Tested-by: Helge Deller <deller@gmx.de>
Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Florian Zumbiehl 2010-08-11 14:17:33 -07:00 committed by Linus Torvalds
parent 17e465034a
commit a292dfa017
1 changed files with 1 additions and 1 deletions
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2
arch/parisc/mm/ioremap.c
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@ -71,7 +71,7 @@ void __iomem * __ioremap(unsigned long phys_addr, unsigned long size, unsigned l
*/
offset = phys_addr & ~PAGE_MASK;
phys_addr &= PAGE_MASK;
size = PAGE_ALIGN(last_addr) - phys_addr;
size = PAGE_ALIGN(last_addr + 1) - phys_addr;
/*
* Ok, go for it..