From: Hoegeun Kwon <hoegeun.kwon@samsung.com>
Date: Thu, 27 Oct 2022 08:36:02 +0000 (+0900)
Subject: misc: tizen-inform_reboot: Fix to use kernel_write function
X-Git-Tag: accepted/tizen/unified/20230118.172025~28
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=7bd7cf017d260458fe28a66bb6ccfb4befbb4bad;p=platform%2Fkernel%2Flinux-rpi.git

misc: tizen-inform_reboot: Fix to use kernel_write function

Fixed to use kernel_write instead of vfs_write. When using vfs_write,
there is a problem that the user buffer cannot be accessed.

Change-Id: Idb549b9c833188c585395af8191090dda8a5dc4c
Signed-off-by: Hoegeun Kwon <hoegeun.kwon@samsung.com>
---

diff --git a/drivers/misc/tizen-inform-reboot.c b/drivers/misc/tizen-inform-reboot.c
index 861554a..f85386e 100644
--- a/drivers/misc/tizen-inform-reboot.c
+++ b/drivers/misc/tizen-inform-reboot.c
@@ -41,7 +41,7 @@ static int inform_reboot_notifier(struct notifier_block *nb,
 		} else
 			cmd = "norm";
 
-		vfs_write(file, cmd, strlen(cmd), &pos);
+		kernel_write(file, cmd, strlen(cmd), &pos);
 
 		down_read(&sb->s_umount);
 		sync_filesystem(sb);