From: Al Viro <viro@zeniv.linux.org.uk>
Date: Thu, 23 Apr 2020 03:08:34 +0000 (-0400)
Subject: via-pmu: don't bother with access_ok()
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=d65aca9ff83b04fa1062800c7796d44729ef55af;p=linux.git

via-pmu: don't bother with access_ok()

we are using copy_to_user() for actual copying

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

diff --git a/drivers/macintosh/via-pmu.c b/drivers/macintosh/via-pmu.c
index 83eb05bf85ff9..8450d7c008d0f 100644
--- a/drivers/macintosh/via-pmu.c
+++ b/drivers/macintosh/via-pmu.c
@@ -2184,8 +2184,6 @@ pmu_read(struct file *file, char __user *buf,
 
 	if (count < 1 || !pp)
 		return -EINVAL;
-	if (!access_ok(buf, count))
-		return -EFAULT;
 
 	spin_lock_irqsave(&pp->lock, flags);
 	add_wait_queue(&pp->wait, &wait);