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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 <[email protected]>
Cc: Kyle McMartin <[email protected]>
Acked-by: Helge Deller <[email protected]>
Tested-by: Helge Deller <[email protected]>
Cc: "James E.J. Bottomley" <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Florian Zumbiehl 2010-08-11 14:17:33 -07:00 • committed by Linus Torvalds
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..