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authorNicolas Pitre <nico@cam.org>2005-02-17 20:35:04 +0000
committerThomas Gleixner <tglx@mtd.linutronix.de>2005-05-23 12:39:55 +0200
commit332d71f7682d860b4439e197bc0ae85867458e1b (patch)
treefe0fbd8a7b25115833c18a6d0d1986c051e6badc /drivers/mtd/chips
parentb81226c5d55b16a23f044d37b45e9b6909d8fbce (diff)
[MTD] Make OTP actually work.
The OTP code is rather broken without this. Signed-off-by: Nicolas Pitre <nico@cam.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'drivers/mtd/chips')
-rw-r--r--drivers/mtd/chips/cfi_cmdset_0001.c8
1 files changed, 5 insertions, 3 deletions
diff --git a/drivers/mtd/chips/cfi_cmdset_0001.c b/drivers/mtd/chips/cfi_cmdset_0001.c
index b3f5acf0760..f018ea16217 100644
--- a/drivers/mtd/chips/cfi_cmdset_0001.c
+++ b/drivers/mtd/chips/cfi_cmdset_0001.c
@@ -4,7 +4,7 @@
*
* (C) 2000 Red Hat. GPL'd
*
- * $Id: cfi_cmdset_0001.c,v 1.167 2005/02/08 17:11:15 nico Exp $
+ * $Id: cfi_cmdset_0001.c,v 1.168 2005/02/17 20:34:59 nico Exp $
*
*
* 10/10/2000 Nicolas Pitre <nico@cam.org>
@@ -2025,7 +2025,7 @@ do_otp_lock(struct map_info *map, struct flchip *chip, u_long offset,
map_word datum;
/* make sure area matches group boundaries */
- if (offset != 0 || size != grpsz)
+ if (size != grpsz)
return -EXDEV;
datum = map_word_ff(map);
@@ -2089,7 +2089,7 @@ static int cfi_intelext_otp_walk(struct mtd_info *mtd, loff_t from, size_t len,
groupno = 0;
}
- while (groups > 0) {
+ while (len > 0 && groups > 0) {
if (!action) {
/*
* Special case: if action is NULL
@@ -2118,6 +2118,7 @@ static int cfi_intelext_otp_walk(struct mtd_info *mtd, loff_t from, size_t len,
*retlen += sizeof(*otpinfo);
} else if (from >= groupsize) {
from -= groupsize;
+ data_offset += groupsize;
} else {
int size = groupsize;
data_offset += from;
@@ -2133,6 +2134,7 @@ static int cfi_intelext_otp_walk(struct mtd_info *mtd, loff_t from, size_t len,
buf += size;
len -= size;
*retlen += size;
+ data_offset += size;
}
groupno++;
groups--;