Re: [PATCH cciss: fix printk format warning

From: Andrew Morton
Date: Thu Oct 26 2006 - 19:03:12 EST


On Mon, 23 Oct 2006 21:46:08 -0700
Randy Dunlap <randy.dunlap@xxxxxxxxxx> wrote:

> --- linux-2619-rc3-pv.orig/drivers/block/cciss.c
> +++ linux-2619-rc3-pv/drivers/block/cciss.c
> @@ -1992,8 +1992,8 @@ cciss_read_capacity(int ctlr, int logvol
> *block_size = BLOCK_SIZE;
> }
> if (*total_size != (__u32) 0)

Why is cciss_read_capacity casting *total_size to u32?

It is a sector_t. If it happens to have the value 0xnnnnnnnn00000000 then
this expression will incorrectly evaluate to `false'.

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