MIPS: Compat: Zero upper 32-bit of offset_high and offset_low.
Through sys_llseek() arguably should do exactly that it doesn't which
means llseek(2) will fail for o32 processes if offset_low has bit 31 set.
As suggested by Heiko Carstens.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
diff --git a/arch/mips/kernel/linux32.c b/arch/mips/kernel/linux32.c
index 2a47271..6242bc6 100644
--- a/arch/mips/kernel/linux32.c
+++ b/arch/mips/kernel/linux32.c
@@ -133,9 +133,9 @@
return sys_ftruncate(fd, merge_64(a2, a3));
}
-SYSCALL_DEFINE5(32_llseek, unsigned long, fd, unsigned long, offset_high,
- unsigned long, offset_low, loff_t __user *, result,
- unsigned long, origin)
+SYSCALL_DEFINE5(32_llseek, unsigned int, fd, unsigned int, offset_high,
+ unsigned int, offset_low, loff_t __user *, result,
+ unsigned int, origin)
{
return sys_llseek(fd, offset_high, offset_low, result, origin);
}