linux-kernel - [PATCH 3/6] hid-prodikeys: Move an assignment in pk

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Date:   Sat, 3 Feb 2018 18:39:58 +0100
From:   SF Markus Elfring <elfring@...rs.sourceforge.net>
To:     linux-input@...r.kernel.org,
        Benjamin Tissoires <benjamin.tissoires@...hat.com>,
        Jiri Kosina <jikos@...nel.org>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        kernel-janitors@...r.kernel.org
Subject: [PATCH 3/6] hid-prodikeys: Move an assignment in pk_probe()

From: Markus Elfring <elfring@...rs.sourceforge.net>
Date: Sat, 3 Feb 2018 17:20:01 +0100

Move one assignment for a data structure member in one local variable
so that its setting will only be performed after a corresponding memory
allocation succeeded by this function.

Signed-off-by: Markus Elfring <elfring@...rs.sourceforge.net>
---
 drivers/hid/hid-prodikeys.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/hid/hid-prodikeys.c b/drivers/hid/hid-prodikeys.c
index 2e79dfc92162..7672f723b268 100644
--- a/drivers/hid/hid-prodikeys.c
+++ b/drivers/hid/hid-prodikeys.c
@@ -804,8 +804,6 @@ static int pk_probe(struct hid_device *hdev, const struct hid_device_id *id)
 	if (!pk)
 		return -ENOMEM;
 
-	pk->hdev = hdev;
-
 	pm = kzalloc(sizeof(*pm), GFP_KERNEL);
 	if (pm == NULL) {
 		ret = -ENOMEM;
@@ -814,6 +812,7 @@ static int pk_probe(struct hid_device *hdev, const struct hid_device_id *id)
 
 	pm->pk = pk;
 	pk->pm = pm;
+	pk->hdev = hdev;
 	pm->ifnum = ifnum;
 
 	hid_set_drvdata(hdev, pk);
-- 
2.16.1