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

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Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
This commit is contained in:
Mike Frysinger
2008-03-07 02:37:41 +08:00
committed by Bryan Wu
parent 1307a65130
commit 0ddeeca25c
6 changed files with 20 additions and 17 deletions
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20
arch/blackfin/kernel/process.c
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@ -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;
}