[SPARC64]: Fix lvalue casting in signal32.c

diff --git a/arch/sparc64/kernel/signal32.c b/arch/sparc64/kernel/signal32.c
index cb1ffd005b9b2f776e4be65f3bbcc52d183d1187..cc3019d6dd65ce7a76f4220edc1a64302bf9cdd2 100644 (file)
--- a/arch/sparc64/kernel/signal32.c
+++ b/arch/sparc64/kernel/signal32.c
@@ -394,7 +394,7 @@ segv:
 asmlinkage void do_rt_sigreturn32(struct pt_regs *regs)
 {
        struct rt_signal_frame32 __user *sf;
-       unsigned int psr, pc, npc, fpu_save;
+       unsigned int psr, pc, npc, fpu_save, u_ss_sp;
        mm_segment_t old_fs;
        sigset_t set;
        compat_sigset_t seta;
@@ -448,7 +448,8 @@ asmlinkage void do_rt_sigreturn32(struct pt_regs *regs)
        if (fpu_save)
                err |= restore_fpu_state32(regs, &sf->fpu_state);
        err |= copy_from_user(&seta, &sf->mask, sizeof(compat_sigset_t));
-       err |= __get_user((long)st.ss_sp, &sf->stack.ss_sp);
+       err |= __get_user(u_ss_sp, &sf->stack.ss_sp);
+       st.ss_sp = (void *) (long) u_ss_sp;
        err |= __get_user(st.ss_flags, &sf->stack.ss_flags);
        err |= __get_user(st.ss_size, &sf->stack.ss_size);
        if (err)
@@ -977,7 +978,7 @@ asmlinkage int svr4_setcontext(svr4_ucontext_t __user *c, struct pt_regs *regs)
 {
        svr4_gregset_t  __user *gr;
        mm_segment_t old_fs;
-       u32 pc, npc, psr;
+       u32 pc, npc, psr, u_ss_sp;
        sigset_t set;
        svr4_sigset_t setv;
        int i, err;
@@ -1017,7 +1018,8 @@ asmlinkage int svr4_setcontext(svr4_ucontext_t __user *c, struct pt_regs *regs)
        if (_NSIG_WORDS >= 2)
                set.sig[1] = setv.sigbits[2] | (((long)setv.sigbits[3]) << 32);
        
-       err |= __get_user((long)st.ss_sp, &c->stack.sp);
+       err |= __get_user(u_ss_sp, &c->stack.sp);
+       st.ss_sp = (void *) (long) u_ss_sp;
        err |= __get_user(st.ss_flags, &c->stack.flags);
        err |= __get_user(st.ss_size, &c->stack.size);
        if (err)
@@ -1310,9 +1312,9 @@ asmlinkage int do_sys32_sigstack(u32 u_ssptr, u32 u_ossptr, unsigned long sp)
        
        /* Now see if we want to update the new state. */
        if (ssptr) {
-               void *ss_sp;
+               u32 ss_sp;
 
-               if (get_user((long)ss_sp, &ssptr->the_stack))
+               if (get_user(ss_sp, &ssptr->the_stack))
                        goto out;
 
                /* If the current stack was set with sigaltstack, don't
@@ -1338,13 +1340,15 @@ out:
 asmlinkage int do_sys32_sigaltstack(u32 ussa, u32 uossa, unsigned long sp)
 {
        stack_t uss, uoss;
+       u32 u_ss_sp = 0;
        int ret;
        mm_segment_t old_fs;
        
-       if (ussa && (get_user((long)uss.ss_sp, &((stack_t32 __user *)(long)ussa)->ss_sp) ||
+       if (ussa && (get_user(u_ss_sp, &((stack_t32 __user *)(long)ussa)->ss_sp) ||
                    __get_user(uss.ss_flags, &((stack_t32 __user *)(long)ussa)->ss_flags) ||
                    __get_user(uss.ss_size, &((stack_t32 __user *)(long)ussa)->ss_size)))
                return -EFAULT;
+       uss.ss_sp = (void *) (long) u_ss_sp;
        old_fs = get_fs();
        set_fs(KERNEL_DS);
        ret = do_sigaltstack(ussa ? &uss : NULL, uossa ? &uoss : NULL, sp);