From: zhong jiang <zhongjiang@huawei.com>
To: <gregkh@linuxfoundation.org>
Cc: <andrew.donnellan@au1.ibm.com>, <fbarrat@linux.vnet.ibm.com>,
<linux-kernel@vger.kernel.org>
Subject: [RESEND PATCHv2] misc: cxl: Fix possible null pointer dereference
Date: Thu, 4 Oct 2018 13:02:53 +0800 [thread overview]
Message-ID: <1538629373-33217-1-git-send-email-zhongjiang@huawei.com> (raw)
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>
---
drivers/misc/cxl/guest.c | 2 --
1 file changed, 2 deletions(-)
diff --git a/drivers/misc/cxl/guest.c b/drivers/misc/cxl/guest.c
index 3bc0c15..5d28d9e 100644
--- a/drivers/misc/cxl/guest.c
+++ b/drivers/misc/cxl/guest.c
@@ -1018,8 +1018,6 @@ int cxl_guest_init_afu(struct cxl *adapter, int slice, struct device_node *afu_n
void cxl_guest_remove_afu(struct cxl_afu *afu)
{
- pr_devel("in %s - AFU(%d)\n", __func__, afu->slice);
-
if (!afu)
return;
--
1.7.12.4
next reply other threads:[~2018-10-04 5:19 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-10-04 5:02 zhong jiang [this message]
2018-10-04 11:48 ` Frederic Barrat
2018-10-04 11:59 ` Andrew Donnellan
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