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| author | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2007-04-16 22:53:16 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2007-05-01 17:06:00 -0700 |
| commit | b438299c93753620877d3a848c0f82757d211b31 (patch) | |
| tree | 1589dac1a729abb53a264517fb6d147d62a6486c /drivers | |
| parent | 86f757f0125d688bdd3d211df3859e013d8544b2 (diff) | |
| download | linux-b438299c93753620877d3a848c0f82757d211b31.tar.gz linux-b438299c93753620877d3a848c0f82757d211b31.tar.bz2 linux-b438299c93753620877d3a848c0f82757d211b31.zip | |
fix bogon in /dev/mem mmap'ing on nommu
While digging through my MAP_FIXED changes, I found that rather obvious
bug in /dev/mem mmap implementation for nommu archs. get_unmapped_area()
is expected to return an address, not a pfn.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Acked-By: David Howells <dhowells@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/char/mem.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/char/mem.c b/drivers/char/mem.c index f5c160caf9f4..5f066963f171 100644 --- a/drivers/char/mem.c +++ b/drivers/char/mem.c @@ -248,7 +248,7 @@ static unsigned long get_unmapped_area_mem(struct file *file, { if (!valid_mmap_phys_addr_range(pgoff, len)) return (unsigned long) -EINVAL; - return pgoff; + return pgoff << PAGE_SHIFT; } /* can't do an in-place private mapping if there's no MMU */ |