From d25ade71ef80e6312b3e0b53583db518ebb11798 Mon Sep 17 00:00:00 2001 From: =?utf8?q?Ricard=20Wanderl=C3=B6f?= Date: Tue, 17 Oct 2006 17:27:11 +0200 Subject: [PATCH] [MTD] mtdchar: Fix MEMGETOOBSEL and ECCGETLAYOUT ioctls MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit 1. The ECCGETLAYOUT ioctl copy_to_user() call has a superfluous '&' causing the resulting information to be garbage rather than the intended mtd->ecclayout. 2. The MEMGETOOBSEL misses copying mtd->ecclayout->eccbytes so the resulting field of the returned structure contains garbage. Signed-off-by: Ricard Wanderlöf Signed-off-by: David Woodhouse --- drivers/mtd/mtdchar.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/mtd/mtdchar.c b/drivers/mtd/mtdchar.c index 5b6acfcb2b88..866c8e0d57e4 100644 --- a/drivers/mtd/mtdchar.c +++ b/drivers/mtd/mtdchar.c @@ -616,6 +616,7 @@ static int mtd_ioctl(struct inode *inode, struct file *file, memcpy(&oi.eccpos, mtd->ecclayout->eccpos, sizeof(oi.eccpos)); memcpy(&oi.oobfree, mtd->ecclayout->oobfree, sizeof(oi.oobfree)); + oi.eccbytes = mtd->ecclayout->eccbytes; if (copy_to_user(argp, &oi, sizeof(struct nand_oobinfo))) return -EFAULT; @@ -715,7 +716,7 @@ static int mtd_ioctl(struct inode *inode, struct file *file, if (!mtd->ecclayout) return -EOPNOTSUPP; - if (copy_to_user(argp, &mtd->ecclayout, + if (copy_to_user(argp, mtd->ecclayout, sizeof(struct nand_ecclayout))) return -EFAULT; break; -- 2.20.1