From 0ebfd313fd4baf3fa1bd02d5f106e377595d4987 Mon Sep 17 00:00:00 2001 From: Heiko Carstens <heiko.carstens@de.ibm.com> Date: Mon, 14 Oct 2013 12:09:37 +0200 Subject: s390/compat,signal: fix return value of copy_siginfo_(to|from)_user32() The return value of copy_siginfo_(to|from)_user32() gets passed to user space, however we do not convert a positive return value from copy_(to|from)_user to -EFAULT. Therefore these functions (and the calling system calls) my incorrectly return a positive number (bytes not copied) instead of -EFAULT. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> --- arch/s390/kernel/compat_signal.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'arch/s390/kernel/compat_signal.c') diff --git a/arch/s390/kernel/compat_signal.c b/arch/s390/kernel/compat_signal.c index 1389b637dae..adaa9e9478d 100644 --- a/arch/s390/kernel/compat_signal.c +++ b/arch/s390/kernel/compat_signal.c @@ -99,7 +99,7 @@ int copy_siginfo_to_user32(compat_siginfo_t __user *to, siginfo_t *from) break; } } - return err; + return err ? -EFAULT : 0; } int copy_siginfo_from_user32(siginfo_t *to, compat_siginfo_t __user *from) @@ -148,7 +148,7 @@ int copy_siginfo_from_user32(siginfo_t *to, compat_siginfo_t __user *from) break; } } - return err; + return err ? -EFAULT : 0; } static int save_sigregs32(struct pt_regs *regs, _sigregs32 __user *sregs) -- cgit v1.2.3-70-g09d2