[PATCH] 3/4: DM: dm-raid1.c: Enforce max of 9 mirrors

[Kevin Corry]

dm-raid1.c: Since kcopyd can currently only handle 1 source and up to 8
destinations, enforce a max of 9 mirrors when creating a dm-mirror device.

Signed-off-by: Kevin Corry <kevcorry@xxxxxxxxxx>

--- diff/drivers/md/dm-raid1.c	2004-06-30 08:45:34.500305424 -0500
+++ source/drivers/md/dm-raid1.c	2004-06-30 08:48:25.247347928 -0500
@@ -1028,7 +1028,7 @@
 	argc -= args_used;
 
 	if (!argc || sscanf(argv[0], "%u", &nr_mirrors) != 1 ||
-	    nr_mirrors < 2) {
+	    nr_mirrors < 2 || nr_mirrors > KCOPYD_MAX_REGIONS + 1) {
 		ti->error = "dm-mirror: Invalid number of mirrors";
 		dm_destroy_dirty_log(dl);
 		return -EINVAL;
-
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