From: Morten Thunberg Svendsen <[email protected]>

Before using block_isbad() check if mtd->block_isbad() is defined.
Calculating pgcnt must be done using pgsize defined to 512 on
NOR and mtd->writesize for NAND, not using  mtd->writesize directly.

Signed-off-by: Morten Thunberg Svendsen <[email protected]>
Acked-by: Artem Bityutskiy <[email protected]>
Signed-off-by: David Woodhouse <[email protected]>

 drivers/mtd/tests/mtd_readtest.c   |    6 +++++-
 drivers/mtd/tests/mtd_speedtest.c  |    7 ++++++-
 drivers/mtd/tests/mtd_stresstest.c |    6 +++++-
 3 files changed, 16 insertions(+), 3 deletions(-)

---

http://git.linuxtv.org/v4l-dvb.git?a=commitdiff;h=f5e2bae0aad03164ffc7ce9dfeee6608e2c87dba

diff --git a/drivers/mtd/tests/mtd_readtest.c b/drivers/mtd/tests/mtd_readtest.c
index 79fc453..25c5dd0 100644
--- a/drivers/mtd/tests/mtd_readtest.c
+++ b/drivers/mtd/tests/mtd_readtest.c
@@ -147,6 +147,10 @@ static int scan_for_bad_eraseblocks(void)
        }
        memset(bbt, 0 , ebcnt);
 
+       /* NOR flash does not implement block_isbad */
+       if (mtd->block_isbad == NULL)
+               return 0;
+
        printk(PRINT_PREF "scanning for bad eraseblocks\n");
        for (i = 0; i < ebcnt; ++i) {
                bbt[i] = is_block_bad(i) ? 1 : 0;
@@ -184,7 +188,7 @@ static int __init mtd_readtest_init(void)
        tmp = mtd->size;
        do_div(tmp, mtd->erasesize);
        ebcnt = tmp;
-       pgcnt = mtd->erasesize / mtd->writesize;
+       pgcnt = mtd->erasesize / pgsize;
 
        printk(PRINT_PREF "MTD device size %llu, eraseblock size %u, "
               "page size %u, count of eraseblocks %u, pages per "
diff --git a/drivers/mtd/tests/mtd_speedtest.c 
b/drivers/mtd/tests/mtd_speedtest.c
index 141363a..7fbb51d 100644
--- a/drivers/mtd/tests/mtd_speedtest.c
+++ b/drivers/mtd/tests/mtd_speedtest.c
@@ -301,6 +301,10 @@ static int scan_for_bad_eraseblocks(void)
        }
        memset(bbt, 0 , ebcnt);
 
+       /* NOR flash does not implement block_isbad */
+       if (mtd->block_isbad == NULL)
+               goto out;
+
        printk(PRINT_PREF "scanning for bad eraseblocks\n");
        for (i = 0; i < ebcnt; ++i) {
                bbt[i] = is_block_bad(i) ? 1 : 0;
@@ -309,6 +313,7 @@ static int scan_for_bad_eraseblocks(void)
                cond_resched();
        }
        printk(PRINT_PREF "scanned %d eraseblocks, %d are bad\n", i, bad);
+out:
        goodebcnt = ebcnt - bad;
        return 0;
 }
@@ -340,7 +345,7 @@ static int __init mtd_speedtest_init(void)
        tmp = mtd->size;
        do_div(tmp, mtd->erasesize);
        ebcnt = tmp;
-       pgcnt = mtd->erasesize / mtd->writesize;
+       pgcnt = mtd->erasesize / pgsize;
 
        printk(PRINT_PREF "MTD device size %llu, eraseblock size %u, "
               "page size %u, count of eraseblocks %u, pages per "
diff --git a/drivers/mtd/tests/mtd_stresstest.c 
b/drivers/mtd/tests/mtd_stresstest.c
index 6392047..a99d3cd 100644
--- a/drivers/mtd/tests/mtd_stresstest.c
+++ b/drivers/mtd/tests/mtd_stresstest.c
@@ -227,6 +227,10 @@ static int scan_for_bad_eraseblocks(void)
        }
        memset(bbt, 0 , ebcnt);
 
+       /* NOR flash does not implement block_isbad */
+       if (mtd->block_isbad == NULL)
+               return 0;
+
        printk(PRINT_PREF "scanning for bad eraseblocks\n");
        for (i = 0; i < ebcnt; ++i) {
                bbt[i] = is_block_bad(i) ? 1 : 0;
@@ -265,7 +269,7 @@ static int __init mtd_stresstest_init(void)
        tmp = mtd->size;
        do_div(tmp, mtd->erasesize);
        ebcnt = tmp;
-       pgcnt = mtd->erasesize / mtd->writesize;
+       pgcnt = mtd->erasesize / pgsize;
 
        printk(PRINT_PREF "MTD device size %llu, eraseblock size %u, "
               "page size %u, count of eraseblocks %u, pages per "

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