From: Souptick Joarder <jrdr.linux@gmail.com>
Date: Tue, 5 May 2020 20:18:32 +0000 (+0530)
Subject: VMCI: Avoid extra check for access_ok()
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=691e0f2c74cce6866affcdd8277a7d4c521814dc;p=linux.git

VMCI: Avoid extra check for access_ok()

get_user_pages_fast() is already having a check for the same. This
double check can be removed.

Signed-off-by: Souptick Joarder <jrdr.linux@gmail.com>
Link: https://lore.kernel.org/r/1588709912-8065-1-git-send-email-jrdr.linux@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/misc/vmw_vmci/vmci_host.c b/drivers/misc/vmw_vmci/vmci_host.c
index ce16d6b99295e..2d8328d928d53 100644
--- a/drivers/misc/vmw_vmci/vmci_host.c
+++ b/drivers/misc/vmw_vmci/vmci_host.c
@@ -233,8 +233,6 @@ static int vmci_host_setup_notify(struct vmci_ctx *context,
 	 * about the size.
 	 */
 	BUILD_BUG_ON(sizeof(bool) != sizeof(u8));
-	if (!access_ok((void __user *)uva, sizeof(u8)))
-		return VMCI_ERROR_GENERIC;
 
 	/*
 	 * Lock physical page backing a given user VA.