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[MTD] Disconnect struct mtd_info from ABI

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mtdchar.c direcly copied part of struct mtd_info to userspace, thereby
implicitly making it part of the ABI.  With this patch, struct
mtd_info is independent of the ABI and can have its fields removed,
reordered, etc.

Signed-off-by: Joern Engel <joern@wh.fh-wedel.de>
This commit is contained in:
Joern Engel 2006-05-30 14:25:35 +02:00
parent 92cbfdcc36
commit 73c619ea0e
1 changed files with 10 additions and 1 deletions
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11
drivers/mtd/mtdchar.c
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@ -380,6 +380,7 @@ static int mtd_ioctl(struct inode *inode, struct file *file,
void __user *argp = (void __user *)arg;
int ret = 0;
u_long size;
struct mtd_info_user info;
DEBUG(MTD_DEBUG_LEVEL0, "MTD_ioctl\n");
@ -415,7 +416,15 @@ static int mtd_ioctl(struct inode *inode, struct file *file,
}
case MEMGETINFO:
if (copy_to_user(argp, mtd, sizeof(struct mtd_info_user)))
info.type = mtd->type;
info.flags = mtd->flags;
info.size = mtd->size;
info.erasesize = mtd->erasesize;
info.writesize = mtd->writesize;
info.oobsize = mtd->oobsize;
info.ecctype = mtd->ecctype;
info.eccsize = mtd->eccsize;
if (copy_to_user(argp, &info, sizeof(struct mtd_info_user)))
return -EFAULT;
break;