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

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mtd tests may erase the mtd device, so force the user to specify which
mtd device to test by using the module parameter. Disable the default
(using mtd0) since this may destroy a vital part of the flash if the
module is inserted accidently or carelessly.

Reported-by: Roland Kletzing <devzero@web.de>
Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@intel.com>
This commit is contained in:
Wolfram Sang
2011-10-30 00:11:53 +02:00
committed by Artem Bityutskiy
parent 6be55f79a2
commit 7406060e29
7 changed files with 55 additions and 7 deletions
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8
drivers/mtd/tests/mtd_readtest.c
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@@ -29,7 +29,7 @@
#define PRINT_PREF KERN_INFO "mtd_readtest: "
static int dev;
static int dev = -EINVAL;
module_param(dev, int, S_IRUGO);
MODULE_PARM_DESC(dev, "MTD device number to use");
@@ -170,6 +170,12 @@ static int __init mtd_readtest_init(void)
printk(KERN_INFO "\n");
printk(KERN_INFO "=================================================\n");
if (dev < 0) {
printk(PRINT_PREF "Please specify a valid mtd-device via module paramter\n");
return -EINVAL;
}
printk(PRINT_PREF "MTD device: %d\n", dev);
mtd = get_mtd_device(NULL, dev);