diff options
-rw-r--r-- | lib/idr.c | 8 |
1 files changed, 7 insertions, 1 deletions
@@ -220,8 +220,14 @@ build_up: | |||
220 | */ | 220 | */ |
221 | while ((layers < (MAX_LEVEL - 1)) && (id >= (1 << (layers*IDR_BITS)))) { | 221 | while ((layers < (MAX_LEVEL - 1)) && (id >= (1 << (layers*IDR_BITS)))) { |
222 | layers++; | 222 | layers++; |
223 | if (!p->count) | 223 | if (!p->count) { |
224 | /* special case: if the tree is currently empty, | ||
225 | * then we grow the tree by moving the top node | ||
226 | * upwards. | ||
227 | */ | ||
228 | p->layer++; | ||
224 | continue; | 229 | continue; |
230 | } | ||
225 | if (!(new = get_from_free_list(idp))) { | 231 | if (!(new = get_from_free_list(idp))) { |
226 | /* | 232 | /* |
227 | * The allocation failed. If we built part of | 233 | * The allocation failed. If we built part of |