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path: root/drivers/char/drm/drm_vm.c
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Diffstat (limited to 'drivers/char/drm/drm_vm.c')
-rw-r--r--drivers/char/drm/drm_vm.c12
1 files changed, 6 insertions, 6 deletions
diff --git a/drivers/char/drm/drm_vm.c b/drivers/char/drm/drm_vm.c
index 3f73aa7..0291cd6 100644
--- a/drivers/char/drm/drm_vm.c
+++ b/drivers/char/drm/drm_vm.c
@@ -188,7 +188,7 @@ static void drm_vm_shm_close(struct vm_area_struct *vma)
map = vma->vm_private_data;
- down(&dev->struct_sem);
+ mutex_lock(&dev->struct_mutex);
for (pt = dev->vmalist, prev = NULL; pt; pt = next) {
next = pt->next;
if (pt->vma->vm_private_data == map)
@@ -248,7 +248,7 @@ static void drm_vm_shm_close(struct vm_area_struct *vma)
drm_free(map, sizeof(*map), DRM_MEM_MAPS);
}
}
- up(&dev->struct_sem);
+ mutex_unlock(&dev->struct_mutex);
}
/**
@@ -404,12 +404,12 @@ static void drm_vm_open(struct vm_area_struct *vma)
vma_entry = drm_alloc(sizeof(*vma_entry), DRM_MEM_VMAS);
if (vma_entry) {
- down(&dev->struct_sem);
+ mutex_lock(&dev->struct_mutex);
vma_entry->vma = vma;
vma_entry->next = dev->vmalist;
vma_entry->pid = current->pid;
dev->vmalist = vma_entry;
- up(&dev->struct_sem);
+ mutex_unlock(&dev->struct_mutex);
}
}
@@ -431,7 +431,7 @@ static void drm_vm_close(struct vm_area_struct *vma)
vma->vm_start, vma->vm_end - vma->vm_start);
atomic_dec(&dev->vma_count);
- down(&dev->struct_sem);
+ mutex_lock(&dev->struct_mutex);
for (pt = dev->vmalist, prev = NULL; pt; prev = pt, pt = pt->next) {
if (pt->vma == vma) {
if (prev) {
@@ -443,7 +443,7 @@ static void drm_vm_close(struct vm_area_struct *vma)
break;
}
}
- up(&dev->struct_sem);
+ mutex_unlock(&dev->struct_mutex);
}
/**
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