X-Git-Url: http://review.tizen.org/git/?a=blobdiff_plain;f=drivers%2Fblock%2Fnull_blk.c;h=a01d7f68fc77374e570409eeacbc887e77cd0d5d;hb=9967d8ac5c0f3e730a21abefe4c889c724f3b212;hp=a2e69d26266d9b7faef4244aef695180d4c6eaef;hpb=d7ada73c189610614d863da7799f24c32c468809;p=platform%2Fadaptation%2Frenesas_rcar%2Frenesas_kernel.git

diff --git a/drivers/block/null_blk.c b/drivers/block/null_blk.c
index a2e69d2..a01d7f6 100644
--- a/drivers/block/null_blk.c
+++ b/drivers/block/null_blk.c
@@ -622,6 +622,11 @@ static int __init null_init(void)
 		irqmode = NULL_IRQ_NONE;
 	}
 #endif
+	if (bs > PAGE_SIZE) {
+		pr_warn("null_blk: invalid block size\n");
+		pr_warn("null_blk: defaults block size to %lu\n", PAGE_SIZE);
+		bs = PAGE_SIZE;
+	}
 
 	if (queue_mode == NULL_Q_MQ && use_per_node_hctx) {
 		if (submit_queues < nr_online_nodes) {