From 366f4aea649a65c3735d91b4409d84c771811290 Mon Sep 17 00:00:00 2001 From: Jan Kara Date: Tue, 25 Oct 2016 13:53:27 +0200 Subject: [PATCH] brd: Switch rd_size to unsigned long Currently rd_size was int which lead to overflow and bogus device size once the requested ramdisk size was 1 TB or more. Although these days ramdisks with 1 TB size are mostly a mistake, the days when they are useful are not far. Reported-by: Bart Van Assche Signed-off-by: Jan Kara Signed-off-by: Jens Axboe --- drivers/block/brd.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/block/brd.c b/drivers/block/brd.c index 0c76d40..9d53358 100644 --- a/drivers/block/brd.c +++ b/drivers/block/brd.c @@ -443,8 +443,8 @@ static int rd_nr = CONFIG_BLK_DEV_RAM_COUNT; module_param(rd_nr, int, S_IRUGO); MODULE_PARM_DESC(rd_nr, "Maximum number of brd devices"); -int rd_size = CONFIG_BLK_DEV_RAM_SIZE; -module_param(rd_size, int, S_IRUGO); +unsigned long rd_size = CONFIG_BLK_DEV_RAM_SIZE; +module_param(rd_size, ulong, S_IRUGO); MODULE_PARM_DESC(rd_size, "Size of each RAM disk in kbytes."); static int max_part = 1; -- 2.7.4