[PATCH] uml: sparse cleanups

misc sparse annotations

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Jeff Dike <jdike@addtoit.com>
Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 25 insertions, 23 deletions

diff --git a/arch/um/sys-i386/signal.c b/arch/um/sys-i386/signal.c
index 33a40f5ef0d2..f5d0e1c37ea2 100644
--- a/arch/um/sys-i386/signal.c
+++ b/arch/um/sys-i386/signal.c
@@ -19,7 +19,7 @@
 #include "skas.h"
 
 static int copy_sc_from_user_skas(struct pt_regs *regs,
-                                  struct sigcontext *from)
+                                  struct sigcontext __user *from)
 {
         struct sigcontext sc;
         unsigned long fpregs[HOST_FP_SIZE];
@@ -57,7 +57,7 @@ static int copy_sc_from_user_skas(struct pt_regs *regs,
         return(0);
 }
 
-int copy_sc_to_user_skas(struct sigcontext *to, struct _fpstate *to_fp,
+int copy_sc_to_user_skas(struct sigcontext *to, struct _fpstate __user *to_fp,
                          struct pt_regs *regs, unsigned long sp)
 {
         struct sigcontext sc;
@@ -92,7 +92,7 @@ int copy_sc_to_user_skas(struct sigcontext *to, struct _fpstate *to_fp,
                        "errno = %d\n", err);
                 return(1);
         }
-        to_fp = (to_fp ? to_fp : (struct _fpstate *) (to + 1));
+        to_fp = (to_fp ? to_fp : (struct _fpstate __user *) (to + 1));
         sc.fpstate = to_fp;
 
         if(err)
@@ -113,10 +113,11 @@ int copy_sc_to_user_skas(struct sigcontext *to, struct _fpstate *to_fp,
  * saved pointer is in the kernel, but the sigcontext is in userspace, so we
  * copy_to_user it.
  */
-int copy_sc_from_user_tt(struct sigcontext *to, struct sigcontext *from,
+int copy_sc_from_user_tt(struct sigcontext *to, struct sigcontext __user *from,
                          int fpsize)
 {
-        struct _fpstate *to_fp, *from_fp;
+        struct _fpstate *to_fp;
+        struct _fpstate __user *from_fp;
         unsigned long sigs;
         int err;
 
@@ -131,13 +132,14 @@ int copy_sc_from_user_tt(struct sigcontext *to, struct sigcontext *from,
         return(err);
 }
 
-int copy_sc_to_user_tt(struct sigcontext *to, struct _fpstate *fp,
+int copy_sc_to_user_tt(struct sigcontext *to, struct _fpstate __user *fp,
                        struct sigcontext *from, int fpsize, unsigned long sp)
 {
-        struct _fpstate *to_fp, *from_fp;
+        struct _fpstate __user *to_fp;
+        struct _fpstate *from_fp;
         int err;
 
-        to_fp = (fp ? fp : (struct _fpstate *) (to + 1));
+        to_fp = (fp ? fp : (struct _fpstate __user *) (to + 1));
         from_fp = from->fpstate;
         err = copy_to_user(to, from, sizeof(*to));
 
@@ -165,7 +167,7 @@ static int copy_sc_from_user(struct pt_regs *to, void __user *from)
         return(ret);
 }
 
-static int copy_sc_to_user(struct sigcontext *to, struct _fpstate *fp,
+static int copy_sc_to_user(struct sigcontext *to, struct _fpstate __user *fp,
                            struct pt_regs *from, unsigned long sp)
 {
         return(CHOOSE_MODE(copy_sc_to_user_tt(to, fp, UPT_SC(&from->regs),
@@ -173,7 +175,7 @@ static int copy_sc_to_user(struct sigcontext *to, struct _fpstate *fp,
                            copy_sc_to_user_skas(to, fp, from, sp)));
 }
 
-static int copy_ucontext_to_user(struct ucontext *uc, struct _fpstate *fp,
+static int copy_ucontext_to_user(struct ucontext __user *uc, struct _fpstate __user *fp,
                                  sigset_t *set, unsigned long sp)
 {
         int err = 0;
@@ -188,7 +190,7 @@ static int copy_ucontext_to_user(struct ucontext *uc, struct _fpstate *fp,
 
 struct sigframe
 {
-        char *pretcode;
+        char __user *pretcode;
         int sig;
         struct sigcontext sc;
         struct _fpstate fpstate;
@@ -198,10 +200,10 @@ struct sigframe
 
 struct rt_sigframe
 {
-        char *pretcode;
+        char __user *pretcode;
         int sig;
-        struct siginfo *pinfo;
-        void *puc;
+        struct siginfo __user *pinfo;
+        void __user *puc;
         struct siginfo info;
         struct ucontext uc;
         struct _fpstate fpstate;
@@ -213,16 +215,16 @@ int setup_signal_stack_sc(unsigned long stack_top, int sig,
                           sigset_t *mask)
 {
         struct sigframe __user *frame;
-        void *restorer;
+        void __user *restorer;
         unsigned long save_sp = PT_REGS_SP(regs);
         int err = 0;
 
         stack_top &= -8UL;
-        frame = (struct sigframe *) stack_top - 1;
+        frame = (struct sigframe __user *) stack_top - 1;
         if (!access_ok(VERIFY_WRITE, frame, sizeof(*frame)))
                 return 1;
 
-        restorer = (void *) frame->retcode;
+        restorer = frame->retcode;
         if(ka->sa.sa_flags & SA_RESTORER)
                 restorer = ka->sa.sa_restorer;
 
@@ -278,16 +280,16 @@ int setup_signal_stack_si(unsigned long stack_top, int sig,
                           siginfo_t *info, sigset_t *mask)
 {
         struct rt_sigframe __user *frame;
-        void *restorer;
+        void __user *restorer;
         unsigned long save_sp = PT_REGS_SP(regs);
         int err = 0;
 
         stack_top &= -8UL;
-        frame = (struct rt_sigframe *) stack_top - 1;
+        frame = (struct rt_sigframe __user *) stack_top - 1;
         if (!access_ok(VERIFY_WRITE, frame, sizeof(*frame)))
                 return 1;
 
-        restorer = (void *) frame->retcode;
+        restorer = frame->retcode;
         if(ka->sa.sa_flags & SA_RESTORER)
                 restorer = ka->sa.sa_restorer;
 
@@ -333,7 +335,7 @@ err:
 long sys_sigreturn(struct pt_regs regs)
 {
         unsigned long sp = PT_REGS_SP(&current->thread.regs);
-        struct sigframe __user *frame = (struct sigframe *)(sp - 8);
+        struct sigframe __user *frame = (struct sigframe __user *)(sp - 8);
         sigset_t set;
         struct sigcontext __user *sc = &frame->sc;
         unsigned long __user *oldmask = &sc->oldmask;
@@ -365,8 +367,8 @@ long sys_sigreturn(struct pt_regs regs)
 
 long sys_rt_sigreturn(struct pt_regs regs)
 {
-        unsigned long __user sp = PT_REGS_SP(&current->thread.regs);
-        struct rt_sigframe __user *frame = (struct rt_sigframe *) (sp - 4);
+        unsigned long sp = PT_REGS_SP(&current->thread.regs);
+        struct rt_sigframe __user *frame = (struct rt_sigframe __user *) (sp - 4);
         sigset_t set;
         struct ucontext __user *uc = &frame->uc;
         int sig_size = _NSIG_WORDS * sizeof(unsigned long);