From: Rizzo Davide <davide@elpa.it>
Date: Tue, 5 Feb 2008 07:44:48 +0000 (-0800)
Subject: [MTD] [NOR] fix startup lock when using multiple nor flash chips
X-Git-Tag: v2.6.25-rc1~296^2~1
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=484b8e64c848185af0d3671fafba4dd66ca412d2;p=profile%2Fivi%2Fkernel-x86-ivi.git

[MTD] [NOR] fix startup lock when using multiple nor flash chips

Taken from http://bugzilla.kernel.org/show_bug.cgi?id=9829

I found and solved the problem, at line 115 of drivers/mtd/chips/gen_probe.c
(kernel 2.6.24): mapsize value must be calculated in bytes, not in long.

Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
---

diff --git a/drivers/mtd/chips/gen_probe.c b/drivers/mtd/chips/gen_probe.c
index 2eb696d..d338b8c 100644
--- a/drivers/mtd/chips/gen_probe.c
+++ b/drivers/mtd/chips/gen_probe.c
@@ -112,7 +112,7 @@ static struct cfi_private *genprobe_ident_chips(struct map_info *map, struct chi
 		max_chips = 1;
 	}
 
-	mapsize = (max_chips + BITS_PER_LONG-1) / BITS_PER_LONG;
+	mapsize = sizeof(long) * ( (max_chips + BITS_PER_LONG-1) / BITS_PER_LONG );
 	chip_map = kzalloc(mapsize, GFP_KERNEL);
 	if (!chip_map) {
 		printk(KERN_WARNING "%s: kmalloc failed for CFI chip map\n", map->name);