X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=lib%2Fidr.c;h=c1a2069017614e6f95a7c2a892fcca1c9c2a7ff1;hb=63c70a0d7b59bac08bd14cd24c36f76aafc25de6;hp=422a9d5069cc3389986ebcf98ebc3861e1535180;hpb=2214482cb00e6da1397c2ecde5b392490eb9637f;p=pandora-kernel.git

diff --git a/lib/idr.c b/lib/idr.c
index 422a9d5069cc..c1a206901761 100644
--- a/lib/idr.c
+++ b/lib/idr.c
@@ -445,6 +445,7 @@ EXPORT_SYMBOL(idr_remove);
 void idr_remove_all(struct idr *idp)
 {
 	int n, id, max;
+	int bt_mask;
 	struct idr_layer *p;
 	struct idr_layer *pa[MAX_LEVEL];
 	struct idr_layer **paa = &pa[0];
@@ -462,8 +463,10 @@ void idr_remove_all(struct idr *idp)
 			p = p->ary[(id >> n) & IDR_MASK];
 		}
 
+		bt_mask = id;
 		id += 1 << n;
-		while (n < fls(id)) {
+		/* Get the highest bit that the above add changed from 0->1. */
+		while (n < fls(id ^ bt_mask)) {
 			if (p)
 				free_layer(p);
 			n += IDR_BITS;