linux-kernel - [PATCH] eeprom: idt_89hpesx: clean up an error pointer vs NULL inconsistency

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Message-ID: <20180802082720.calhmn77gmkmcb2d@kili.mountain>
Date:   Thu, 2 Aug 2018 11:27:21 +0300
From:   Dan Carpenter <dan.carpenter@...cle.com>
To:     Arnd Bergmann <arnd@...db.de>
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Huy Duong <qhuyduong@...mail.com>,
        Serge Semin <fancer.lancer@...il.com>,
        Rob Herring <robh@...nel.org>, linux-kernel@...r.kernel.org,
        kernel-janitors@...r.kernel.org
Subject: [PATCH] eeprom: idt_89hpesx: clean up an error pointer vs NULL
 inconsistency

We check for IS_ERR_OR_NULL() here, but later we check the same thing
for NULL only.  It turns out that it can only be NULL so we can make the
checking consistent by removing the ERR_PTR stuff.

Signed-off-by: Dan Carpenter <dan.carpenter@...cle.com>

diff --git a/drivers/misc/eeprom/idt_89hpesx.c b/drivers/misc/eeprom/idt_89hpesx.c
index 119eb05a5a91..8a4659518c33 100644
--- a/drivers/misc/eeprom/idt_89hpesx.c
+++ b/drivers/misc/eeprom/idt_89hpesx.c
@@ -1128,7 +1128,7 @@ static void idt_get_fw_data(struct idt_89hpesx_dev *pdev)
 
 	device_for_each_child_node(dev, fwnode) {
 		ee_id = idt_ee_match_id(fwnode);
-		if (IS_ERR_OR_NULL(ee_id)) {
+		if (!ee_id) {
 			dev_warn(dev, "Skip unsupported EEPROM device");
 			continue;
 		} else