X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=lib%2Fidr.c;h=6415d053e2bfa838e3a95313137d07a944261fd8;hb=85747f0325406f3393f48e50c7e31437e2915141;hp=81fc430602ee8f4c2b4e336a606813ad54b0e5b2;hpb=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2;p=linux-2.6

diff --git a/lib/idr.c b/lib/idr.c
index 81fc430602..6415d053e2 100644
--- a/lib/idr.c
+++ b/lib/idr.c
@@ -175,7 +175,7 @@ build_up:
 	 * Add a new layer to the top of the tree if the requested
 	 * id is larger than the currently allocated space.
 	 */
-	while ((layers < MAX_LEVEL) && (id >= (1 << (layers*IDR_BITS)))) {
+	while ((layers < (MAX_LEVEL - 1)) && (id >= (1 << (layers*IDR_BITS)))) {
 		layers++;
 		if (!p->count)
 			continue;
@@ -207,7 +207,7 @@ build_up:
 }
 
 /**
- * idr_get_new_above - allocate new idr entry above a start id
+ * idr_get_new_above - allocate new idr entry above or equal to a start id
  * @idp: idr handle
  * @ptr: pointer you want associated with the ide
  * @start_id: id to start search at