arm64: compat: use compat_uptr_t type for compat_ucontext.uc_link
struct compat_ucontext * is a 64-bit pointer, so we need to use a compat_uptr_t instead to avoid declaring a structure incompatible with what AArch32 userspace expects. Cc: <stable@vger.kernel.org> Reported-by: Edmund Grimley-Evans <Edmund.Grimley-Evans@arm.com> Signed-off-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
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@ -76,7 +76,7 @@ struct compat_sigcontext {
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struct compat_ucontext {
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compat_ulong_t uc_flags;
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struct compat_ucontext *uc_link;
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compat_uptr_t uc_link;
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compat_stack_t uc_stack;
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struct compat_sigcontext uc_mcontext;
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compat_sigset_t uc_sigmask;
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@ -703,7 +703,7 @@ int compat_setup_rt_frame(int usig, struct k_sigaction *ka, siginfo_t *info,
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err |= copy_siginfo_to_user32(&frame->info, info);
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__put_user_error(0, &frame->sig.uc.uc_flags, err);
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__put_user_error(NULL, &frame->sig.uc.uc_link, err);
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__put_user_error(0, &frame->sig.uc.uc_link, err);
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memset(&stack, 0, sizeof(stack));
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stack.ss_sp = (compat_uptr_t)current->sas_ss_sp;
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