NOMMU: Make VMAs per MM as for MMU-mode linux

[mirror_ubuntu-jammy-kernel.git] / arch / blackfin / kernel / ptrace.c

diff --git a/arch/blackfin/kernel/ptrace.c b/arch/blackfin/kernel/ptrace.c
index d2d3885366304ea38826c0c2897c0a4008184c20..594e325b40e4fa078ce1c7aee07041a20a0ac4d0 100644 (file)
--- a/arch/blackfin/kernel/ptrace.c
+++ b/arch/blackfin/kernel/ptrace.c
@@ -160,15 +160,15 @@ put_reg(struct task_struct *task, int regno, unsigned long data)
 static inline int is_user_addr_valid(struct task_struct *child,
                                     unsigned long start, unsigned long len)
 {
-       struct vm_list_struct *vml;
+       struct vm_area_struct *vma;
        struct sram_list_struct *sraml;
 
        /* overflow */
        if (start + len < start)
                return -EIO;
 
-       for (vml = child->mm->context.vmlist; vml; vml = vml->next)
-               if (start >= vml->vma->vm_start && start + len < vml->vma->vm_end)
+       vma = find_vma(child->mm, start);
+       if (vma && start >= vma->vm_start && start + len <= vma->vm_end)
                        return 0;
 
        for (sraml = child->mm->context.sram_list; sraml; sraml = sraml->next)