linux-kernel - [PATCH 22/32] staging: gasket: don't treat no device reset callback as an error

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Date:   Mon, 16 Jul 2018 19:09:16 -0700
From:   Todd Poynor <toddpoynor@...il.com>
To:     Rob Springer <rspringer@...gle.com>,
        John Joseph <jnjoseph@...gle.com>,
        Ben Chan <benchan@...omium.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:     Zhongze Hu <frankhu@...omium.org>, Simon Que <sque@...omium.org>,
        Dmitry Torokhov <dtor@...omium.org>,
        Guenter Roeck <groeck@...omium.org>,
        devel@...verdev.osuosl.org, linux-kernel@...r.kernel.org,
        Todd Poynor <toddpoynor@...gle.com>
Subject: [PATCH 22/32] staging: gasket: don't treat no device reset callback as an error

From: Todd Poynor <toddpoynor@...gle.com>

It is not an error for a device to not have a reset callback registered.

Signed-off-by: Simon Que <sque@...omium.org>
Signed-off-by: Todd Poynor <toddpoynor@...gle.com>
---
 drivers/staging/gasket/gasket_core.c | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/drivers/staging/gasket/gasket_core.c b/drivers/staging/gasket/gasket_core.c
index 7ea6551626524..131ae2462edc1 100644
--- a/drivers/staging/gasket/gasket_core.c
+++ b/drivers/staging/gasket/gasket_core.c
@@ -1840,11 +1840,8 @@ int gasket_reset_nolock(struct gasket_dev *gasket_dev, uint reset_type)
 	const struct gasket_driver_desc *driver_desc;
 
 	driver_desc = gasket_dev->internal_desc->driver_desc;
-	if (!driver_desc->device_reset_cb) {
-		gasket_log_error(
-			gasket_dev, "No device reset callback was registered.");
-		return -EINVAL;
-	}
+	if (!driver_desc->device_reset_cb)
+		return 0;
 
 	/* Perform a device reset of the requested type. */
 	ret = driver_desc->device_reset_cb(gasket_dev, reset_type);
-- 
2.18.0.203.gfac676dfb9-goog