mtd: tests: don't use mtd0 as a default

[pandora-kernel.git] / drivers / mtd / tests / mtd_torturetest.c

diff --git a/drivers/mtd/tests/mtd_torturetest.c b/drivers/mtd/tests/mtd_torturetest.c
index 25786ce..03ab649 100644 (file)
--- a/drivers/mtd/tests/mtd_torturetest.c
+++ b/drivers/mtd/tests/mtd_torturetest.c
@@ -46,7 +46,7 @@ static int pgcnt;
 module_param(pgcnt, int, S_IRUGO);
 MODULE_PARM_DESC(pgcnt, "number of pages per eraseblock to torture (0 => all)");
 
-static int dev;
+static int dev = -EINVAL;
 module_param(dev, int, S_IRUGO);
 MODULE_PARM_DESC(dev, "MTD device number to use");
 
@@ -213,6 +213,13 @@ static int __init tort_init(void)
        printk(KERN_INFO "=================================================\n");
        printk(PRINT_PREF "Warning: this program is trying to wear out your "
               "flash, stop it if this is not wanted.\n");
+
+       if (dev < 0) {
+               printk(PRINT_PREF "Please specify a valid mtd-device via module paramter\n");
+               printk(KERN_CRIT "CAREFUL: This test wipes all data on the specified MTD device!\n");
+               return -EINVAL;
+       }
+
        printk(PRINT_PREF "MTD device: %d\n", dev);
        printk(PRINT_PREF "torture %d eraseblocks (%d-%d) of mtd%d\n",
               ebcnt, eb, eb + ebcnt - 1, dev);