Merge branch 'drm-patches' of master.kernel.org:/pub/scm/linux/kernel/git/airlied...

[linux-drm-fsl-dcu.git] / arch / s390 / kernel / compat_signal.c

diff --git a/arch/s390/kernel/compat_signal.c b/arch/s390/kernel/compat_signal.c
index d49b876a83bf5af6995aae9f0237185f19f42eee..80a54a0149ab5956935476b56b28855b262d6f15 100644 (file)
--- a/arch/s390/kernel/compat_signal.c
+++ b/arch/s390/kernel/compat_signal.c
@@ -169,12 +169,12 @@ sys32_sigaction(int sig, const struct old_sigaction32 __user *act,
                compat_old_sigset_t mask;
                if (!access_ok(VERIFY_READ, act, sizeof(*act)) ||
                    __get_user(sa_handler, &act->sa_handler) ||
-                   __get_user(sa_restorer, &act->sa_restorer))
+                   __get_user(sa_restorer, &act->sa_restorer) ||
+                   __get_user(new_ka.sa.sa_flags, &act->sa_flags) ||
+                   __get_user(mask, &act->sa_mask))
                        return -EFAULT;
                new_ka.sa.sa_handler = (__sighandler_t) sa_handler;
                new_ka.sa.sa_restorer = (void (*)(void)) sa_restorer;
-               __get_user(new_ka.sa.sa_flags, &act->sa_flags);
-               __get_user(mask, &act->sa_mask);
                siginitset(&new_ka.sa.sa_mask, mask);
         }
 
@@ -185,10 +185,10 @@ sys32_sigaction(int sig, const struct old_sigaction32 __user *act,
                sa_restorer = (unsigned long) old_ka.sa.sa_restorer;
                if (!access_ok(VERIFY_WRITE, oact, sizeof(*oact)) ||
                    __put_user(sa_handler, &oact->sa_handler) ||
-                   __put_user(sa_restorer, &oact->sa_restorer))
+                   __put_user(sa_restorer, &oact->sa_restorer) ||
+                   __put_user(old_ka.sa.sa_flags, &oact->sa_flags) ||
+                   __put_user(old_ka.sa.sa_mask.sig[0], &oact->sa_mask))
                        return -EFAULT;
-               __put_user(old_ka.sa.sa_flags, &oact->sa_flags);
-               __put_user(old_ka.sa.sa_mask.sig[0], &oact->sa_mask);
         }
 
        return ret;
@@ -255,9 +255,9 @@ sys32_rt_sigaction(int sig, const struct sigaction32 __user *act,
 }
 
 asmlinkage long
-sys32_sigaltstack(const stack_t32 __user *uss, stack_t32 __user *uoss,
-                                                       struct pt_regs *regs)
+sys32_sigaltstack(const stack_t32 __user *uss, stack_t32 __user *uoss)
 {
+       struct pt_regs *regs = task_pt_regs(current);
        stack_t kss, koss;
        unsigned long ss_sp;
        int ret, err = 0;
@@ -275,8 +275,8 @@ sys32_sigaltstack(const stack_t32 __user *uss, stack_t32 __user *uoss,
        }
 
        set_fs (KERNEL_DS);
-       ret = do_sigaltstack((stack_t __user *) (uss ? &kss : NULL),
-                            (stack_t __user *) (uoss ? &koss : NULL),
+       ret = do_sigaltstack((stack_t __force __user *) (uss ? &kss : NULL),
+                            (stack_t __force __user *) (uoss ? &koss : NULL),
                             regs->gprs[15]);
        set_fs (old_fs);
 
@@ -298,7 +298,7 @@ static int save_sigregs32(struct pt_regs *regs, _sigregs32 __user *sregs)
        _s390_regs_common32 regs32;
        int err, i;
 
-       regs32.psw.mask = PSW32_MASK_MERGE(PSW32_USER_BITS,
+       regs32.psw.mask = PSW32_MASK_MERGE(psw32_user_bits,
                                           (__u32)(regs->psw.mask >> 32));
        regs32.psw.addr = PSW32_ADDR_AMODE31 | (__u32) regs->psw.addr;
        for (i = 0; i < NUM_GPRS; i++)
@@ -344,8 +344,9 @@ static int restore_sigregs32(struct pt_regs *regs,_sigregs32 __user *sregs)
        return 0;
 }
 
-asmlinkage long sys32_sigreturn(struct pt_regs *regs)
+asmlinkage long sys32_sigreturn(void)
 {
+       struct pt_regs *regs = task_pt_regs(current);
        sigframe32 __user *frame = (sigframe32 __user *)regs->gprs[15];
        sigset_t set;
 
@@ -370,8 +371,9 @@ badframe:
        return 0;
 }
 
-asmlinkage long sys32_rt_sigreturn(struct pt_regs *regs)
+asmlinkage long sys32_rt_sigreturn(void)
 {
+       struct pt_regs *regs = task_pt_regs(current);
        rt_sigframe32 __user *frame = (rt_sigframe32 __user *)regs->gprs[15];
        sigset_t set;
        stack_t st;
@@ -401,14 +403,14 @@ asmlinkage long sys32_rt_sigreturn(struct pt_regs *regs)
                goto badframe; 
 
        set_fs (KERNEL_DS);
-       do_sigaltstack((stack_t __user *)&st, NULL, regs->gprs[15]);
+       do_sigaltstack((stack_t __force __user *)&st, NULL, regs->gprs[15]);
        set_fs (old_fs);
 
        return regs->gprs[2];
 
 badframe:
-        force_sig(SIGSEGV, current);
-        return 0;
+       force_sig(SIGSEGV, current);
+       return 0;
 }      
 
 /*