diff options
| author | Joern Engel <joern@wh.fh-wedel.de> | 2006-05-30 14:25:35 +0200 |
|---|---|---|
| committer | Joern Engel <joern@wh.fh-wedel.de> | 2006-05-30 14:25:35 +0200 |
| commit | 73c619ea0e49c9306afa7ea53c3362fbc56ffd70 (patch) | |
| tree | d71189bae015f56bf72e7421d4cf1a307b3c1fb8 /drivers/mtd/mtdchar.c | |
| parent | 92cbfdcc3661d7670b01b92b89811cd3a2412297 (diff) | |
| download | lwn-73c619ea0e49c9306afa7ea53c3362fbc56ffd70.tar.gz lwn-73c619ea0e49c9306afa7ea53c3362fbc56ffd70.zip | |
[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>
Diffstat (limited to 'drivers/mtd/mtdchar.c')
| -rw-r--r-- | drivers/mtd/mtdchar.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/drivers/mtd/mtdchar.c b/drivers/mtd/mtdchar.c index fdc535b22e39..5dd0b8d72c8b 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; |