[MIPS] Fix typo in _sys32_rt_sigreturn and _sysn32_rt_sigreturn.

[mirror_ubuntu-bionic-kernel.git] / arch / mips / kernel / signal_n32.c

diff --git a/arch/mips/kernel/signal_n32.c b/arch/mips/kernel/signal_n32.c
index ec61b2670ba6e292abc3a25d410ab383958ffde0..5a3776096f074f794ffe2647c7e4d0ac9bd3f38e 100644 (file)
--- a/arch/mips/kernel/signal_n32.c
+++ b/arch/mips/kernel/signal_n32.c
@@ -48,6 +48,8 @@
 #define __NR_N32_rt_sigreturn          6211
 #define __NR_N32_restart_syscall       6214
 
+#define DEBUG_SIG 0
+
 #define _BLOCKABLE (~(sigmask(SIGKILL) | sigmask(SIGSTOP)))
 
 /* IRIX compatible stack_t  */
@@ -83,12 +85,12 @@ save_static_function(sysn32_rt_sigreturn);
 __attribute_used__ noinline static void
 _sysn32_rt_sigreturn(nabi_no_regargs struct pt_regs regs)
 {
-       struct rt_sigframe_n32 *frame;
+       struct rt_sigframe_n32 __user *frame;
        sigset_t set;
        stack_t st;
        s32 sp;
 
-       frame = (struct rt_sigframe_n32 *) regs.regs[29];
+       frame = (struct rt_sigframe_n32 __user *) regs.regs[29];
        if (!access_ok(VERIFY_READ, frame, sizeof(*frame)))
                goto badframe;
        if (__copy_from_user(&set, &frame->rs_uc.uc_sigmask, sizeof(set)))
@@ -106,7 +108,7 @@ _sysn32_rt_sigreturn(nabi_no_regargs struct pt_regs regs)
        /* The ucontext contains a stack32_t, so we must convert!  */
        if (__get_user(sp, &frame->rs_uc.uc_stack.ss_sp))
                goto badframe;
-       st.ss_size = (long) sp;
+       st.ss_sp = (void *)(long) sp;
        if (__get_user(st.ss_size, &frame->rs_uc.uc_stack.ss_size))
                goto badframe;
        if (__get_user(st.ss_flags, &frame->rs_uc.uc_stack.ss_flags))
@@ -114,7 +116,7 @@ _sysn32_rt_sigreturn(nabi_no_regargs struct pt_regs regs)
 
        /* It is more difficult to avoid calling this function than to
           call it and ignore errors.  */
-       do_sigaltstack(&st, NULL, regs.regs[29]);
+       do_sigaltstack((stack_t __user *)&st, NULL, regs.regs[29]);
 
        /*
         * Don't let your children do this ...
@@ -133,7 +135,7 @@ badframe:
 int setup_rt_frame_n32(struct k_sigaction * ka,
        struct pt_regs *regs, int signr, sigset_t *set, siginfo_t *info)
 {
-       struct rt_sigframe_n32 *frame;
+       struct rt_sigframe_n32 __user *frame;
        int err = 0;
        s32 sp;
 
@@ -184,9 +186,9 @@ int setup_rt_frame_n32(struct k_sigaction * ka,
               current->comm, current->pid,
               frame, regs->cp0_epc, regs->regs[31]);
 #endif
-       return 1;
+       return 0;
 
 give_sigsegv:
        force_sigsegv(signr, current);
-       return 0;
+       return -EFAULT;
 }