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authorJoern Engel <joern@wh.fh-wedel.de>2006-05-30 14:25:35 +0200
committerJoern Engel <joern@wh.fh-wedel.de>2006-05-30 14:25:35 +0200
commit73c619ea0e49c9306afa7ea53c3362fbc56ffd70 (patch)
treed71189bae015f56bf72e7421d4cf1a307b3c1fb8
parent92cbfdcc3661d7670b01b92b89811cd3a2412297 (diff)
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[MTD] Disconnect struct mtd_info from ABI
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>
-rw-r--r--drivers/mtd/mtdchar.c11
1 files changed, 10 insertions, 1 deletions
diff --git a/drivers/mtd/mtdchar.c b/drivers/mtd/mtdchar.c
index fdc535b22e3..5dd0b8d72c8 100644
--- a/drivers/mtd/mtdchar.c
+++ b/drivers/mtd/mtdchar.c
@@ -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;