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[PATCH] powerpc: Fix mmap returning 64 bit addresses
The merge of syscalls.c & sys_ppc32.c (30286ef6e0
)
broke mmap, if the mmap returned a 64 bit address.
do_mmap2 was taking the return value from do_mmap_pgoff (an unsigned long), and
storing it in an int, before returning it to sys_mmap as an unsigned long. So
we were losing the high bits of the address.
You would have thought the compiler could catch this for us ...
Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
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@ -162,7 +162,7 @@ static inline unsigned long do_mmap2(unsigned long addr, size_t len,
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unsigned long fd, unsigned long off, int shift)
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{
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struct file * file = NULL;
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int ret = -EINVAL;
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unsigned long ret = -EINVAL;
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if (shift) {
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if (off & ((1 << shift) - 1))
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