summaryrefslogtreecommitdiff
path: root/arch/s390/kernel/signal.c
diff options
context:
space:
mode:
authorHeiko Carstens <heiko.carstens@de.ibm.com>2013-02-21 16:57:42 +0100
committerMartin Schwidefsky <schwidefsky@de.ibm.com>2013-02-28 09:37:09 +0100
commitd12a2970385cfe0c1b0439f53c3ed1055d4dee3e (patch)
tree2e63d3933409588c922af66d76c89eb1b104415d /arch/s390/kernel/signal.c
parentf45655f6a65538237359abce55edab9cfcc6d82f (diff)
s390/uaccess: remove pointless access_ok() checks
access_ok() always returns 'true' on s390. Therefore all calls are quite pointless and can be removed. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390/kernel/signal.c')
-rw-r--r--arch/s390/kernel/signal.c8
1 files changed, 0 insertions, 8 deletions
diff --git a/arch/s390/kernel/signal.c b/arch/s390/kernel/signal.c
index 9c6e747a5e1e..c45becf82e01 100644
--- a/arch/s390/kernel/signal.c
+++ b/arch/s390/kernel/signal.c
@@ -116,8 +116,6 @@ SYSCALL_DEFINE0(sigreturn)
sigframe __user *frame = (sigframe __user *)regs->gprs[15];
sigset_t set;
- if (!access_ok(VERIFY_READ, frame, sizeof(*frame)))
- goto badframe;
if (__copy_from_user(&set.sig, &frame->sc.oldmask, _SIGMASK_COPY_SIZE))
goto badframe;
set_current_blocked(&set);
@@ -135,8 +133,6 @@ SYSCALL_DEFINE0(rt_sigreturn)
rt_sigframe __user *frame = (rt_sigframe __user *)regs->gprs[15];
sigset_t set;
- if (!access_ok(VERIFY_READ, frame, sizeof(*frame)))
- goto badframe;
if (__copy_from_user(&set.sig, &frame->uc.uc_sigmask, sizeof(set)))
goto badframe;
set_current_blocked(&set);
@@ -195,8 +191,6 @@ static int setup_frame(int sig, struct k_sigaction *ka,
sigframe __user *frame;
frame = get_sigframe(ka, regs, sizeof(sigframe));
- if (!access_ok(VERIFY_WRITE, frame, sizeof(sigframe)))
- goto give_sigsegv;
if (frame == (void __user *) -1UL)
goto give_sigsegv;
@@ -264,8 +258,6 @@ static int setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
rt_sigframe __user *frame;
frame = get_sigframe(ka, regs, sizeof(rt_sigframe));
- if (!access_ok(VERIFY_WRITE, frame, sizeof(rt_sigframe)))
- goto give_sigsegv;
if (frame == (void __user *) -1UL)
goto give_sigsegv;