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-rw-r--r--arch/x86/vdso/vdso32-setup.c11
1 files changed, 6 insertions, 5 deletions
diff --git a/arch/x86/vdso/vdso32-setup.c b/arch/x86/vdso/vdso32-setup.c
index 36df991..1f651f6 100644
--- a/arch/x86/vdso/vdso32-setup.c
+++ b/arch/x86/vdso/vdso32-setup.c
@@ -417,11 +417,12 @@ const char *arch_vma_name(struct vm_area_struct *vma)
return NULL;
}
-struct vm_area_struct *get_gate_vma(struct task_struct *tsk)
+struct vm_area_struct *get_gate_vma(struct mm_struct *mm)
{
- struct mm_struct *mm = tsk->mm;
-
- /* Check to see if this task was created in compat vdso mode */
+ /*
+ * Check to see if the corresponding task was created in compat vdso
+ * mode.
+ */
if (mm && mm->context.vdso == (void *)VDSO_HIGH_BASE)
return &gate_vma;
return NULL;
@@ -429,7 +430,7 @@ struct vm_area_struct *get_gate_vma(struct task_struct *tsk)
int in_gate_area(struct task_struct *task, unsigned long addr)
{
- const struct vm_area_struct *vma = get_gate_vma(task);
+ const struct vm_area_struct *vma = get_gate_vma(task->mm);
return vma && addr >= vma->vm_start && addr < vma->vm_end;
}
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