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Commit b44df334 authored by Heiko Carstens's avatar Heiko Carstens Committed by Linus Torvalds
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[PATCH] s390: bug in setup_rt_frame 



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: default avatarHeiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
parent 022e4fc0

arch/s390/kernel/signal.c

+3 −2
Original line number Diff line number Diff line
@@ -358,8 +358,9 @@ static int setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info, 
	} 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. */