Update Linux to v5.4.2
Change-Id: Idf6911045d9d382da2cfe01b1edff026404ac8fd
diff --git a/drivers/misc/genwqe/card_dev.c b/drivers/misc/genwqe/card_dev.c
index 8c1b63a..0e34c05 100644
--- a/drivers/misc/genwqe/card_dev.c
+++ b/drivers/misc/genwqe/card_dev.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
/**
* IBM Accelerator Family 'GenWQE'
*
@@ -7,15 +8,6 @@
* Author: Joerg-Stephan Vogt <jsvogt@de.ibm.com>
* Author: Michael Jung <mijung@gmx.net>
* Author: Michael Ruettger <michael@ibmra.de>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License (version 2 only)
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
*/
/*
@@ -780,6 +772,8 @@
if ((m->addr == 0x0) || (m->size == 0))
return -EINVAL;
+ if (m->size > ULONG_MAX - PAGE_SIZE - (m->addr & ~PAGE_MASK))
+ return -EINVAL;
map_addr = (m->addr & PAGE_MASK);
map_size = round_up(m->size + (m->addr & ~PAGE_MASK), PAGE_SIZE);
@@ -1307,14 +1301,10 @@
goto err_cdev;
}
- rc = genwqe_init_debugfs(cd);
- if (rc != 0)
- goto err_debugfs;
+ genwqe_init_debugfs(cd);
return 0;
- err_debugfs:
- device_destroy(cd->class_genwqe, cd->devnum_genwqe);
err_cdev:
cdev_del(&cd->cdev_genwqe);
err_add: