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Diffstat (limited to 'drivers/mtd/tests/oobtest.c')
-rw-r--r--drivers/mtd/tests/oobtest.c52
1 files changed, 28 insertions, 24 deletions
diff --git a/drivers/mtd/tests/oobtest.c b/drivers/mtd/tests/oobtest.c
index 1cb3f7758fb6..e1ee68f8b8f8 100644
--- a/drivers/mtd/tests/oobtest.c
+++ b/drivers/mtd/tests/oobtest.c
@@ -1,19 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* Copyright (C) 2006-2008 Nokia Corporation
*
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published by
- * the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program; see the file COPYING. If not, write to the Free Software
- * Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
- *
* Test OOB read and write on MTD device.
*
* Author: Adrian Hunter <ext-adrian.hunter@nokia.com>
@@ -29,7 +17,7 @@
#include <linux/mtd/mtd.h>
#include <linux/slab.h>
#include <linux/sched.h>
-#include <linux/random.h>
+#include <linux/prandom.h>
#include "mtd_test.h"
@@ -68,7 +56,7 @@ static void do_vary_offset(void)
static int write_eraseblock(int ebnum)
{
int i;
- struct mtd_oob_ops ops;
+ struct mtd_oob_ops ops = { };
int err = 0;
loff_t addr = (loff_t)ebnum * mtd->erasesize;
@@ -177,7 +165,7 @@ static size_t memffshow(loff_t addr, loff_t offset, const void *cs,
static int verify_eraseblock(int ebnum)
{
int i;
- struct mtd_oob_ops ops;
+ struct mtd_oob_ops ops = { };
int err = 0;
loff_t addr = (loff_t)ebnum * mtd->erasesize;
size_t bitflips;
@@ -193,6 +181,9 @@ static int verify_eraseblock(int ebnum)
ops.datbuf = NULL;
ops.oobbuf = readbuf;
err = mtd_read_oob(mtd, addr, &ops);
+ if (mtd_is_bitflip(err))
+ err = 0;
+
if (err || ops.oobretlen != use_len) {
pr_err("error: readoob failed at %#llx\n",
(long long)addr);
@@ -227,6 +218,9 @@ static int verify_eraseblock(int ebnum)
ops.datbuf = NULL;
ops.oobbuf = readbuf;
err = mtd_read_oob(mtd, addr, &ops);
+ if (mtd_is_bitflip(err))
+ err = 0;
+
if (err || ops.oobretlen != mtd->oobavail) {
pr_err("error: readoob failed at %#llx\n",
(long long)addr);
@@ -266,7 +260,7 @@ static int verify_eraseblock(int ebnum)
static int verify_eraseblock_in_one_go(int ebnum)
{
- struct mtd_oob_ops ops;
+ struct mtd_oob_ops ops = { };
int err = 0;
loff_t addr = (loff_t)ebnum * mtd->erasesize;
size_t len = mtd->oobavail * pgcnt;
@@ -286,6 +280,9 @@ static int verify_eraseblock_in_one_go(int ebnum)
/* read entire block's OOB at one go */
err = mtd_read_oob(mtd, addr, &ops);
+ if (mtd_is_bitflip(err))
+ err = 0;
+
if (err || ops.oobretlen != len) {
pr_err("error: readoob failed at %#llx\n",
(long long)addr);
@@ -341,7 +338,7 @@ static int __init mtd_oobtest_init(void)
int err = 0;
unsigned int i;
uint64_t tmp;
- struct mtd_oob_ops ops;
+ struct mtd_oob_ops ops = { };
loff_t addr = 0, addr0;
printk(KERN_INFO "\n");
@@ -509,7 +506,6 @@ static int __init mtd_oobtest_init(void)
err = mtd_write_oob(mtd, addr0, &ops);
if (err) {
pr_info("error occurred as expected\n");
- err = 0;
} else {
pr_err("error: can write past end of OOB\n");
errcnt += 1;
@@ -527,9 +523,11 @@ static int __init mtd_oobtest_init(void)
pr_info("attempting to start read past end of OOB\n");
pr_info("an error is expected...\n");
err = mtd_read_oob(mtd, addr0, &ops);
+ if (mtd_is_bitflip(err))
+ err = 0;
+
if (err) {
pr_info("error occurred as expected\n");
- err = 0;
} else {
pr_err("error: can read past end of OOB\n");
errcnt += 1;
@@ -553,7 +551,6 @@ static int __init mtd_oobtest_init(void)
err = mtd_write_oob(mtd, mtd->size - mtd->writesize, &ops);
if (err) {
pr_info("error occurred as expected\n");
- err = 0;
} else {
pr_err("error: wrote past end of device\n");
errcnt += 1;
@@ -571,9 +568,11 @@ static int __init mtd_oobtest_init(void)
pr_info("attempting to read past end of device\n");
pr_info("an error is expected...\n");
err = mtd_read_oob(mtd, mtd->size - mtd->writesize, &ops);
+ if (mtd_is_bitflip(err))
+ err = 0;
+
if (err) {
pr_info("error occurred as expected\n");
- err = 0;
} else {
pr_err("error: read past end of device\n");
errcnt += 1;
@@ -597,7 +596,6 @@ static int __init mtd_oobtest_init(void)
err = mtd_write_oob(mtd, mtd->size - mtd->writesize, &ops);
if (err) {
pr_info("error occurred as expected\n");
- err = 0;
} else {
pr_err("error: wrote past end of device\n");
errcnt += 1;
@@ -615,9 +613,11 @@ static int __init mtd_oobtest_init(void)
pr_info("attempting to read past end of device\n");
pr_info("an error is expected...\n");
err = mtd_read_oob(mtd, mtd->size - mtd->writesize, &ops);
+ if (mtd_is_bitflip(err))
+ err = 0;
+
if (err) {
pr_info("error occurred as expected\n");
- err = 0;
} else {
pr_err("error: read past end of device\n");
errcnt += 1;
@@ -684,6 +684,9 @@ static int __init mtd_oobtest_init(void)
ops.datbuf = NULL;
ops.oobbuf = readbuf;
err = mtd_read_oob(mtd, addr, &ops);
+ if (mtd_is_bitflip(err))
+ err = 0;
+
if (err)
goto out;
if (memcmpshow(addr, readbuf, writebuf,
@@ -692,6 +695,7 @@ static int __init mtd_oobtest_init(void)
(long long)addr);
errcnt += 1;
if (errcnt > 1000) {
+ err = -EINVAL;
pr_err("error: too many errors\n");
goto out;
}
generated by cgit (git 2.34.1) at 2025-12-26 01:20:33 +0000