From 8b491d750885ebe8e7d385ce4186c85957d67123 Mon Sep 17 00:00:00 2001 From: Todd Poynor Date: Thu, 4 Aug 2005 02:05:51 +0100 Subject: [MTD] mtdchar: Return EINVAL for bad seeks instead of fixing up to valid byte mtdchar return -EINVAL for seek prior to offset 0 or to beyond the last byte in the device/partition, similar to various other seek methods, instead of fixing up to first or last byte. Signed-off-by: Todd Poynor Signed-off-by: Thomas Gleixner --- drivers/mtd/mtdchar.c | 15 ++++++--------- 1 file changed, 6 insertions(+), 9 deletions(-) diff --git a/drivers/mtd/mtdchar.c b/drivers/mtd/mtdchar.c index 1ed602a0f24..4b3c6263e7f 100644 --- a/drivers/mtd/mtdchar.c +++ b/drivers/mtd/mtdchar.c @@ -1,5 +1,5 @@ /* - * $Id: mtdchar.c,v 1.73 2005/07/04 17:36:41 gleixner Exp $ + * $Id: mtdchar.c,v 1.74 2005/08/04 01:05:48 tpoynor Exp $ * * Character-device access to raw MTD devices. * @@ -69,26 +69,23 @@ static loff_t mtd_lseek (struct file *file, loff_t offset, int orig) switch (orig) { case 0: /* SEEK_SET */ - file->f_pos = offset; break; case 1: /* SEEK_CUR */ - file->f_pos += offset; + offset += file->f_pos; break; case 2: /* SEEK_END */ - file->f_pos =mtd->size + offset; + offset += mtd->size; break; default: return -EINVAL; } - if (file->f_pos < 0) - file->f_pos = 0; - else if (file->f_pos >= mtd->size) - file->f_pos = mtd->size - 1; + if (offset >= 0 && offset < mtd->size) + return file->f_pos = offset; - return file->f_pos; + return -EINVAL; } -- cgit v1.2.3