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authorMichael Ellerman <michael@ellerman.id.au>2005-10-21 16:01:34 +1000
committerPaul Mackerras <paulus@samba.org>2005-10-21 22:47:52 +1000
commit05d84681abcb33fe34accb5982c413daeb4208c4 (patch)
tree713c1ac65109ab1e2b0bd30a29bad13f2caee38e /arch/powerpc
parent90eac727c6d7afbe707ce408edf97c33385fa08c (diff)
[PATCH] powerpc: Fix mmap returning 64 bit addresses
The merge of syscalls.c & sys_ppc32.c (30286ef6e044bc3d9019c3d8b900572e3fa05e65) 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>
Diffstat (limited to 'arch/powerpc')
-rw-r--r--arch/powerpc/kernel/syscalls.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/powerpc/kernel/syscalls.c b/arch/powerpc/kernel/syscalls.c
index 7a23721365a..f72ced11212 100644
--- a/arch/powerpc/kernel/syscalls.c
+++ b/arch/powerpc/kernel/syscalls.c
@@ -162,7 +162,7 @@ static inline unsigned long do_mmap2(unsigned long addr, size_t len,
unsigned long fd, unsigned long off, int shift)
{
struct file * file = NULL;
- int ret = -EINVAL;
+ unsigned long ret = -EINVAL;
if (shift) {
if (off & ((1 << shift) - 1))