[PATCH] slab: unsigned slabp->inuse cannot be less than 0

[roel kluin <roel.kluin@gmail.com>]

unsigned slabp->inuse cannot be less than 0

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
---
N.B. It could be possible that a different check is needed.
I may not be able to respond for a few weeks.

diff --git a/mm/slab.c b/mm/slab.c
index 0918751..f634a87 100644
--- a/mm/slab.c
+++ b/mm/slab.c
@@ -2997,7 +2997,7 @@ retry:
 		 * there must be at least one object available for
 		 * allocation.
 		 */
-		BUG_ON(slabp->inuse < 0 || slabp->inuse >= cachep->num);
+		BUG_ON(slabp->inuse >= cachep->num);
 
 		while (slabp->inuse < cachep->num && batchcount--) {
 			STATS_INC_ALLOCED(cachep);

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