UBI: remove unneeded error checks

Pointed to by viro.
Signed-off-by: NArtem Bityutskiy <Artem.Bityutskiy@nokia.com>

drivers/mtd/ubi/build.c

@@ -685,13 +685,6 @@ static int __init ubi_init(void)
 		struct mtd_dev_param *p = &mtd_dev_param[i];
 
 		cond_resched();
-
-		if (!p->name) {
-			dbg_err("empty name");
-			err = -EINVAL;
-			goto out_detach;
-		}
-
 		err = attach_mtd_dev(p->name, p->vid_hdr_offs, p->data_offs);
 		if (err)
 			goto out_detach;
@@ -798,7 +791,7 @@ static int __init ubi_mtd_param_parse(const char *val, struct kernel_param *kp)
 
 	/* Get rid of the final newline */
 	if (buf[len - 1] == '\n')
-		buf[len - 1] = 0;
+		buf[len - 1] = '\0';
 
 	for (i = 0; i < 3; i++)
 		tokens[i] = strsep(&pbuf, ",");
@@ -808,9 +801,6 @@ static int __init ubi_mtd_param_parse(const char *val, struct kernel_param *kp)
 		return -EINVAL;
 	}
 
-	if (tokens[0] == '\0')
-		return -EINVAL;
-
 	p = &mtd_dev_param[mtd_devs];
 	strcpy(&p->name[0], tokens[0]);
 

drivers/mtd/ubi/kapi.c

@@ -38,9 +38,8 @@ int ubi_get_device_info(int ubi_num, struct ubi_device_info *di)
 	const struct ubi_device *ubi;
 
 	if (ubi_num < 0 || ubi_num >= UBI_MAX_DEVICES ||
-	    !ubi_devices[ubi_num]) {
+	    !ubi_devices[ubi_num])
 		return -ENODEV;
-	}
 
 	ubi = ubi_devices[ubi_num];
 	di->ubi_num = ubi->ubi_num;