From: Al Viro <viro@zeniv.linux.org.uk>
Date: Wed, 19 Jun 2013 08:35:42 +0000 (+0400)
Subject: mconsole: we'd better initialize pos before passing it to vfs_read()...
X-Git-Tag: v4.13~9327^2~2
X-Git-Url: https://git.proxmox.com/?a=commitdiff_plain;h=c9036e9f3b2b77f678572260e1ef1075fcb08c36;p=mirror_ubuntu-bionic-kernel.git

mconsole: we'd better initialize pos before passing it to vfs_read()...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---

diff --git a/arch/um/drivers/mconsole_kern.c b/arch/um/drivers/mconsole_kern.c
index d7d21851e60c..3df3bd544492 100644
--- a/arch/um/drivers/mconsole_kern.c
+++ b/arch/um/drivers/mconsole_kern.c
@@ -147,7 +147,7 @@ void mconsole_proc(struct mc_request *req)
 	}
 
 	do {
-		loff_t pos;
+		loff_t pos = file->f_pos;
 		mm_segment_t old_fs = get_fs();
 		set_fs(KERNEL_DS);
 		len = vfs_read(file, buf, PAGE_SIZE - 1, &pos);