From: zhong jiang <zhongjiang@huawei.com>
Date: Thu, 4 Oct 2018 05:02:53 +0000 (+0800)
Subject: misc: cxl: Fix possible null pointer dereference
X-Git-Tag: v4.19.86~14
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=5d017065cec9b946e709ec18ae2a59594ee94736;p=thirdparty%2Fkernel%2Fstable.git

misc: cxl: Fix possible null pointer dereference

[ Upstream commit 3dac3583bf1a61db6aaf31dfd752c677a4400afd ]

It is not safe to dereference an object before a null test. It is
not needed and just remove them. Ftrace can be used instead.

Signed-off-by: zhong jiang <zhongjiang@huawei.com>
Acked-by: Andrew Donnellan <andrew.donnellan@au1.ibm.com>
Acked-by: Frederic Barrat <fbarrat@linux.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---

diff --git a/drivers/misc/cxl/guest.c b/drivers/misc/cxl/guest.c
index b83a373e3a8dd..08f4a512afad2 100644
--- a/drivers/misc/cxl/guest.c
+++ b/drivers/misc/cxl/guest.c
@@ -1020,8 +1020,6 @@ err1:
 
 void cxl_guest_remove_afu(struct cxl_afu *afu)
 {
-	pr_devel("in %s - AFU(%d)\n", __func__, afu->slice);
-
 	if (!afu)
 		return;