linux-kernel - [PATCH 06/13] eeprom: ee1004: Improve creating dummy devices

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Date:   Mon, 24 May 2021 22:13:12 +0200
From:   Heiner Kallweit <hkallweit1@...il.com>
To:     Arnd Bergmann <arnd@...db.de>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:     Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: [PATCH 06/13] eeprom: ee1004: Improve creating dummy devices

i2c_new_dummy_device() calls i2c_new_client_device() that complains
if it fails to create the device. Therefore we don't have to emit an
error message in case of failure. In addition ensure that
ee1004_set_page is only set if creating the device succeeded.

Signed-off-by: Heiner Kallweit <hkallweit1@...il.com>
---
 drivers/misc/eeprom/ee1004.c | 13 ++++++-------
 1 file changed, 6 insertions(+), 7 deletions(-)

diff --git a/drivers/misc/eeprom/ee1004.c b/drivers/misc/eeprom/ee1004.c
index 0d497e0e4..4b2c60a18 100644
--- a/drivers/misc/eeprom/ee1004.c
+++ b/drivers/misc/eeprom/ee1004.c
@@ -179,15 +179,14 @@ static int ee1004_probe(struct i2c_client *client,
 	mutex_lock(&ee1004_bus_lock);
 	if (++ee1004_dev_count == 1) {
 		for (cnr = 0; cnr < 2; cnr++) {
-			ee1004_set_page[cnr] = i2c_new_dummy_device(client->adapter,
-						EE1004_ADDR_SET_PAGE + cnr);
-			if (IS_ERR(ee1004_set_page[cnr])) {
-				dev_err(&client->dev,
-					"address 0x%02x unavailable\n",
-					EE1004_ADDR_SET_PAGE + cnr);
-				err = PTR_ERR(ee1004_set_page[cnr]);
+			struct i2c_client *cl;
+
+			cl = i2c_new_dummy_device(client->adapter, EE1004_ADDR_SET_PAGE + cnr);
+			if (IS_ERR(cl)) {
+				err = PTR_ERR(cl);
 				goto err_clients;
 			}
+			ee1004_set_page[cnr] = cl;
 		}
 	} else if (client->adapter != ee1004_set_page[0]->adapter) {
 		dev_err(&client->dev,
-- 
2.31.1