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| Rev 3260 | Rev 3290 | ||
|---|---|---|---|
| Line 215... | Line 215... | ||
| 215 | * could race us to double-decrement the refcount and cause a |
215 | * could race us to double-decrement the refcount and cause a |
| 216 | * use-after-free later. Given the frequency of our handle lookups, |
216 | * use-after-free later. Given the frequency of our handle lookups, |
| 217 | * we may want to use ida for number allocation and a hash table |
217 | * we may want to use ida for number allocation and a hash table |
| 218 | * for the pointers, anyway. |
218 | * for the pointers, anyway. |
| 219 | */ |
219 | */ |
| - | 220 | ||
| 220 | spin_lock(&filp->table_lock); |
221 | spin_lock(&filp->table_lock); |
| Line 221... | Line 222... | ||
| 221 | 222 | ||
| 222 | /* Check if we currently have a reference on the object */ |
223 | /* Check if we currently have a reference on the object */ |
| 223 | obj = idr_find(&filp->object_idr, handle); |
224 | obj = idr_find(&filp->object_idr, handle); |
| 224 | if (obj == NULL) { |
225 | if (obj == NULL) { |
| 225 | spin_unlock(&filp->table_lock); |
226 | spin_unlock(&filp->table_lock); |
| 226 | return -EINVAL; |
227 | return -EINVAL; |
| 227 | } |
228 | } |
| Line -... | Line 229... | ||
| - | 229 | dev = obj->dev; |
|
| - | 230 | ||
| 228 | dev = obj->dev; |
231 | printf("%s handle %d obj %p\n", __FUNCTION__, handle, obj); |
| 229 | 232 | ||
| 230 | /* Release reference and decrement refcount. */ |
233 | /* Release reference and decrement refcount. */ |
| Line 231... | Line 234... | ||
| 231 | idr_remove(&filp->object_idr, handle); |
234 | idr_remove(&filp->object_idr, handle); |