[Blackfin] arch: add missing __user marking to ss_sp member of signalstack and a few userspace system functions

Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>

1 files changed, 11 insertions, 9 deletions

diff --git a/arch/blackfin/kernel/process.c b/arch/blackfin/kernel/process.c
index 6dedb2da8b67..fb94cbeafad6 100644
--- a/arch/blackfin/kernel/process.c
+++ b/arch/blackfin/kernel/process.c
@@ -202,7 +202,7 @@ copy_thread(int nr, unsigned long clone_flags,
  * sys_execve() executes a new program.
  */
 
-asmlinkage int sys_execve(char *name, char **argv, char **envp)
+asmlinkage int sys_execve(char __user *name, char __user * __user *argv, char __user * __user *envp)
 {
         int error;
         char *filename;
@@ -245,23 +245,25 @@ unsigned long get_wchan(struct task_struct *p)
 
 void finish_atomic_sections (struct pt_regs *regs)
 {
+        int __user *up0 = (int __user *)&regs->p0;
+
         if (regs->pc < ATOMIC_SEQS_START || regs->pc >= ATOMIC_SEQS_END)
                 return;
 
         switch (regs->pc) {
         case ATOMIC_XCHG32 + 2:
-                put_user(regs->r1, (int *)regs->p0);
+                put_user(regs->r1, up0);
                 regs->pc += 2;
                 break;
 
         case ATOMIC_CAS32 + 2:
         case ATOMIC_CAS32 + 4:
                 if (regs->r0 == regs->r1)
-                        put_user(regs->r2, (int *)regs->p0);
+                        put_user(regs->r2, up0);
                 regs->pc = ATOMIC_CAS32 + 8;
                 break;
         case ATOMIC_CAS32 + 6:
-                put_user(regs->r2, (int *)regs->p0);
+                put_user(regs->r2, up0);
                 regs->pc += 2;
                 break;
 
@@ -269,7 +271,7 @@ void finish_atomic_sections (struct pt_regs *regs)
                 regs->r0 = regs->r1 + regs->r0;
                 /* fall through */
         case ATOMIC_ADD32 + 4:
-                put_user(regs->r0, (int *)regs->p0);
+                put_user(regs->r0, up0);
                 regs->pc = ATOMIC_ADD32 + 6;
                 break;
 
@@ -277,7 +279,7 @@ void finish_atomic_sections (struct pt_regs *regs)
                 regs->r0 = regs->r1 - regs->r0;
                 /* fall through */
         case ATOMIC_SUB32 + 4:
-                put_user(regs->r0, (int *)regs->p0);
+                put_user(regs->r0, up0);
                 regs->pc = ATOMIC_SUB32 + 6;
                 break;
 
@@ -285,7 +287,7 @@ void finish_atomic_sections (struct pt_regs *regs)
                 regs->r0 = regs->r1 | regs->r0;
                 /* fall through */
         case ATOMIC_IOR32 + 4:
-                put_user(regs->r0, (int *)regs->p0);
+                put_user(regs->r0, up0);
                 regs->pc = ATOMIC_IOR32 + 6;
                 break;
 
@@ -293,7 +295,7 @@ void finish_atomic_sections (struct pt_regs *regs)
                 regs->r0 = regs->r1 & regs->r0;
                 /* fall through */
         case ATOMIC_AND32 + 4:
-                put_user(regs->r0, (int *)regs->p0);
+                put_user(regs->r0, up0);
                 regs->pc = ATOMIC_AND32 + 6;
                 break;
 
@@ -301,7 +303,7 @@ void finish_atomic_sections (struct pt_regs *regs)
                 regs->r0 = regs->r1 ^ regs->r0;
                 /* fall through */
         case ATOMIC_XOR32 + 4:
-                put_user(regs->r0, (int *)regs->p0);
+                put_user(regs->r0, up0);
                 regs->pc = ATOMIC_XOR32 + 6;
                 break;
         }