From 21c1176a72bd019d513b26e05d491a31b50b18d2 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Sat, 28 Apr 2012 17:51:42 -0400 Subject: arm: if we get into work_pending while returning to kernel mode, just go away checking in do_signal() is pointless - if we get there with !user_mode(regs) (and we might), we'll end up looping indefinitely. Check in work_pending and break out of the loop if so. Acked-by: Russell King Signed-off-by: Al Viro --- arch/arm/kernel/signal.c | 9 --------- 1 file changed, 9 deletions(-) (limited to 'arch/arm/kernel/signal.c') diff --git a/arch/arm/kernel/signal.c b/arch/arm/kernel/signal.c index 3b37c14c47f5..6b37d4ddf0b6 100644 --- a/arch/arm/kernel/signal.c +++ b/arch/arm/kernel/signal.c @@ -608,15 +608,6 @@ static void do_signal(struct pt_regs *regs, int syscall) siginfo_t info; int signr; - /* - * We want the common case to go fast, which - * is why we may in certain cases get here from - * kernel mode. Just return without doing anything - * if so. - */ - if (!user_mode(regs)) - return; - /* * If we were from a system call, check for system call restarting... */ -- cgit