6/19

[Joe Thornber <joe@fib011235813.fsnet.co.uk>]

minor change for dm-stripe.c. Tests for correct chunksize before it allocates
the stripe context. [Heinz Mauelshagen]

--- diff/drivers/md/dm-stripe.c	2002-11-18 10:11:54.000000000 +0000
+++ source/drivers/md/dm-stripe.c	2002-12-16 09:40:48.000000000 +0000
@@ -117,6 +117,14 @@
 		return -EINVAL;
 	}
 
+	/*
+	 * chunk_size is a power of two
+	 */
+	if (!chunk_size || (chunk_size & (chunk_size - 1))) {
+		ti->error = "dm-stripe: Invalid chunk size";
+		return -EINVAL;
+	}
+
 	if (!multiple(ti->len, stripes, &width)) {
 		ti->error = "dm-stripe: Target length not divisable by "
 		    "number of stripes";
@@ -134,15 +142,6 @@
 	sc->stripe_width = width;
 	ti->split_io = chunk_size;
 
-	/*
-	 * chunk_size is a power of two
-	 */
-	if (!chunk_size || (chunk_size & (chunk_size - 1))) {
-		ti->error = "dm-stripe: Invalid chunk size";
-		kfree(sc);
-		return -EINVAL;
-	}
-
 	sc->chunk_mask = ((sector_t) chunk_size) - 1;
 	for (sc->chunk_shift = 0; chunk_size; sc->chunk_shift++)
 		chunk_size >>= 1;