diff options
Diffstat (limited to 'drivers/mtd/tests/mtd_subpagetest.c')
| -rw-r--r-- | drivers/mtd/tests/mtd_subpagetest.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/drivers/mtd/tests/mtd_subpagetest.c b/drivers/mtd/tests/mtd_subpagetest.c index 2b51842..1a05bfa 100644 --- a/drivers/mtd/tests/mtd_subpagetest.c +++ b/drivers/mtd/tests/mtd_subpagetest.c @@ -29,7 +29,7 @@ #define PRINT_PREF KERN_INFO "mtd_subpagetest: " -static int dev; +static int dev = -EINVAL; module_param(dev, int, S_IRUGO); MODULE_PARM_DESC(dev, "MTD device number to use"); @@ -379,6 +379,13 @@ static int __init mtd_subpagetest_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"); + 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); mtd = get_mtd_device(NULL, dev); |