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 b83a373..08f4a51 100644 (file)
--- 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;