From: Naveen Kumar Parna <parna.naveenkumar@gmail.com>
Date: Tue, 22 Jan 2019 13:44:02 +0000 (+0530)
Subject: mbcs: add .owner to mbcs struct file_operations
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=f9f7bb9e0a0ca33f65a3deae9ec5e07266908fc5;p=openwrt%2Fstaging%2Fblogic.git

mbcs: add .owner to mbcs struct file_operations

Without ".owner = THIS_MODULE" it is possible to crash the kernel
by unloading the mbcs module while someone works with the file.
Fix this by initializing the ‘struct file_operations' ->owner with
THIS_MODULE.

Signed-off-by: Naveen Kumar Parna <parna.naveenkumar@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/char/mbcs.c b/drivers/char/mbcs.c
index 8c9216a0f62e..0a31b60bee7b 100644
--- a/drivers/char/mbcs.c
+++ b/drivers/char/mbcs.c
@@ -50,6 +50,7 @@ static LIST_HEAD(soft_list);
  * file operations
  */
 static const struct file_operations mbcs_ops = {
+	.owner = THIS_MODULE,
 	.open = mbcs_open,
 	.llseek = mbcs_sram_llseek,
 	.read = mbcs_sram_read,