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| author | Philippe De Muyter <phdm@macqel.be> | 2009-12-06 20:28:41 +0100 |
|---|---|---|
| committer | Geert Uytterhoeven <geert@linux-m68k.org> | 2010-02-27 18:27:13 +0100 |
| commit | 88cb773c5f8e45e48f3a89480610448974337cb0 (patch) | |
| tree | 0dbb615f3eebace13263455c7117e9a665749793 /arch | |
| parent | 145452649d035e4e5152f6c4e6798c41960cad3e (diff) | |
| download | op-kernel-dev-88cb773c5f8e45e48f3a89480610448974337cb0.zip op-kernel-dev-88cb773c5f8e45e48f3a89480610448974337cb0.tar.gz | |
m68k: Allow ioremapping top of memory
The test in __ioremap to reject memory ranges crossing the 0 boundary
rejects also memory ranges ending at the end of the memory. Fix that.
Signed-off-by: Philippe De Muyter <phdm@macqel.be>
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/m68k/mm/kmap.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/m68k/mm/kmap.c b/arch/m68k/mm/kmap.c index df620ac..cf93cdd 100644 --- a/arch/m68k/mm/kmap.c +++ b/arch/m68k/mm/kmap.c @@ -116,7 +116,7 @@ void __iomem *__ioremap(unsigned long physaddr, unsigned long size, int cachefla /* * Don't allow mappings that wrap.. */ - if (!size || size > physaddr + size) + if (!size || physaddr > (unsigned long)(-size)) return NULL; #ifdef CONFIG_AMIGA |
