From fc56fb15628d27dd99d3705881a81bf8fed85cee Mon Sep 17 00:00:00 2001
From: Namhyung Kim <namhyung@gmail.com>
Date: Thu, 26 May 2011 21:06:50 +0200
Subject: [PATCH] --- yaml --- r: 252250 b: refs/heads/master c:
 315980c8688c4b06713c1a5fe9d64cdf8ab57a72 h: refs/heads/master v: v3

---
 [refs]                    | 2 +-
 trunk/drivers/block/brd.c | 3 +++
 2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/[refs] b/[refs]
index e2d82c8bc387..61587f0c999d 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: a2cba2913c7623789296e39d787b01031f9c7969
+refs/heads/master: 315980c8688c4b06713c1a5fe9d64cdf8ab57a72
diff --git a/trunk/drivers/block/brd.c b/trunk/drivers/block/brd.c
index bae9a3d4e15b..e9a19d99f928 100644
--- a/trunk/drivers/block/brd.c
+++ b/trunk/drivers/block/brd.c
@@ -581,6 +581,9 @@ static int __init brd_init(void)
 	if (max_part > 0)
 		part_shift = fls(max_part);
 
+	if ((1UL << part_shift) > DISK_MAX_PARTS)
+		return -EINVAL;
+
 	if (rd_nr > 1UL << (MINORBITS - part_shift))
 		return -EINVAL;