[MIPS] N32: Make sure pointer is good before passing it to sys_waitid().



After all we're calling sys_waitid() with fs set to KERNEL_DS ...

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

parent 82ad93f4

arch/mips/kernel/linux32.c

+3 −0

Original line number	Diff line number	Diff line
		@@ -230,6 +230,9 @@ sysn32_waitid(int which, compat_pid_t pid,
		long ret;
		mm_segment_t old_fs = get_fs();

		if (!access_ok(VERIFY_WRITE, uinfo, sizeof(*uinfo)))
		return -EFAULT;

		set_fs (KERNEL_DS);
		ret = sys_waitid(which, pid, uinfo, options,
		uru ? (struct rusage __user *) &ru : NULL);