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[MTD] Avoid 64-bit division in mtdconcat

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WARNING: "__moddi3" [drivers/mtd/mtdconcat.ko] undefined!

Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
This commit is contained in:
Andrew Morton 2006-05-20 10:17:21 +01:00 committed by David Woodhouse
parent 5fc3dbc418
commit 6c8b44abc8
1 changed files with 6 additions and 2 deletions
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8
drivers/mtd/mtdconcat.c
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@ -19,6 +19,8 @@
#include <linux/mtd/mtd.h> #include <linux/mtd/mtd.h>
#include <linux/mtd/concat.h> #include <linux/mtd/concat.h>
#include <asm/div64.h>
/* /*
* Our storage structure: * Our storage structure:
* Subdev points to an array of pointers to struct mtd_info objects * Subdev points to an array of pointers to struct mtd_info objects
@ -276,9 +278,11 @@ concat_writev_ecc(struct mtd_info *mtd, const struct kvec *vecs,
return -EINVAL; return -EINVAL;
/* Check alignment */ /* Check alignment */
if (mtd->oobblock > 1) if (mtd->oobblock > 1) {
if ((to % mtd->oobblock) || (total_len % mtd->oobblock)) loff_t __to = to;
if (do_div(__to, mtd->oobblock) || (total_len % mtd->oobblock))
return -EINVAL; return -EINVAL;
}
/* make a copy of vecs */ /* make a copy of vecs */
vecs_copy = kmalloc(sizeof(struct kvec) * count, GFP_KERNEL); vecs_copy = kmalloc(sizeof(struct kvec) * count, GFP_KERNEL);