From: Heiko Carstens <heiko.carstens@de.ibm.com>

Consider return value of __put_user() when setting up a signal frame
instead of ignoring it.

Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
---

 arch/s390/kernel/signal.c |    5 +++--
 1 files changed, 3 insertions(+), 2 deletions(-)

diff -puN arch/s390/kernel/signal.c~s390-bug-in-setup_rt_frame arch/s390/kernel/signal.c
--- devel/arch/s390/kernel/signal.c~s390-bug-in-setup_rt_frame	2006-04-29 01:46:59.000000000 -0700
+++ devel-akpm/arch/s390/kernel/signal.c	2006-04-29 01:46:59.000000000 -0700
@@ -358,8 +358,9 @@ static int setup_rt_frame(int sig, struc
 	} else {
                 regs->gprs[14] = (unsigned long)
 			frame->retcode | PSW_ADDR_AMODE;
-		err |= __put_user(S390_SYSCALL_OPCODE | __NR_rt_sigreturn,
-	                          (u16 __user *)(frame->retcode));
+		if (__put_user(S390_SYSCALL_OPCODE | __NR_rt_sigreturn,
+			       (u16 __user *)(frame->retcode)))
+			goto give_sigsegv;
 	}
 
 	/* Set up backchain. */
_