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score: add address space annotations

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Annotate the address space for pointers that are used
correctly with __user and __iomem, so that sparse
can better warn about incorrect casts.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
This commit is contained in:
Arnd Bergmann 2009-06-27 15:05:30 +02:00
parent 9fb24cc500
commit a1f8213b95
4 changed files with 16 additions and 14 deletions
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10
arch/score/kernel/signal.c
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@ -131,13 +131,13 @@ void __user *get_sigframe(struct k_sigaction *ka, struct pt_regs *regs,
if ((ka->sa.sa_flags & SA_ONSTACK) && (!on_sig_stack(sp)))
sp = current->sas_ss_sp + current->sas_ss_size;
return (void *)((sp - frame_size) & ~7);
return (void __user*)((sp - frame_size) & ~7);
}
int score_sigaltstack(struct pt_regs *regs)
{
const stack_t *uss = (const stack_t *) regs->regs[4];
stack_t *uoss = (stack_t *) regs->regs[5];
const stack_t __user *uss = (const stack_t __user *) regs->regs[4];
stack_t __user *uoss = (stack_t __user *) regs->regs[5];
unsigned long usp = regs->regs[0];
return do_sigaltstack(uss, uoss, usp);
@ -188,7 +188,7 @@ badframe:
int setup_rt_frame(struct k_sigaction *ka, struct pt_regs *regs,
int signr, sigset_t *set, siginfo_t *info)
{
struct rt_sigframe *frame;
struct rt_sigframe __user *frame;
int err = 0;
frame = get_sigframe(ka, regs, sizeof(*frame));
@ -209,7 +209,7 @@ int setup_rt_frame(struct k_sigaction *ka, struct pt_regs *regs,
err |= copy_siginfo_to_user(&frame->rs_info, info);
err |= __put_user(0, &frame->rs_uc.uc_flags);
err |= __put_user(0, &frame->rs_uc.uc_link);
err |= __put_user((void *)current->sas_ss_sp,
err |= __put_user((void __user *)current->sas_ss_sp,
&frame->rs_uc.uc_stack.ss_sp);
err |= __put_user(sas_ss_flags(regs->regs[0]),
&frame->rs_uc.uc_stack.ss_flags);