X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=drivers%2Fmtd%2Ftests%2Fmtd_oobtest.c;h=933f7e5f32d301a90f7256750b03c8a1542a9609;hb=bb893d15b564f7711b60e0bc12966d049980582d;hp=6bcff42296a92db0acdf290a62242dd8de51603f;hpb=0612b9ddc2eeda014dd805c87c752b342d8f80f0;p=pandora-kernel.git

diff --git a/drivers/mtd/tests/mtd_oobtest.c b/drivers/mtd/tests/mtd_oobtest.c
index 6bcff42296a9..933f7e5f32d3 100644
--- a/drivers/mtd/tests/mtd_oobtest.c
+++ b/drivers/mtd/tests/mtd_oobtest.c
@@ -30,7 +30,7 @@
 
 #define PRINT_PREF KERN_INFO "mtd_oobtest: "
 
-static int dev;
+static int dev = -EINVAL;
 module_param(dev, int, S_IRUGO);
 MODULE_PARM_DESC(dev, "MTD device number to use");
 
@@ -366,6 +366,13 @@ static int __init mtd_oobtest_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);