linux-kernel - [PATCH 12/32] staging: gasket: gasket_wait_with

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Date:   Tue, 17 Jul 2018 13:56:52 -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 12/32] staging: gasket: gasket_wait_with_reschedule simplify logic

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

gasket_wait_with_reschedule() is a little more clear if we just return
directly when the waited-for condition is hit.  This also allows the
following condition check to be removed and identation of the
conditionally-executed code to be reduced.

Reported-by: Dmitry Torokhov <dtor@...omium.org>
Signed-off-by: Zhongze Hu <frankhu@...omium.org>
Signed-off-by: Todd Poynor <toddpoynor@...gle.com>
---
 drivers/staging/gasket/gasket_core.c | 14 ++++----------
 1 file changed, 4 insertions(+), 10 deletions(-)

diff --git a/drivers/staging/gasket/gasket_core.c b/drivers/staging/gasket/gasket_core.c
index 442543573f6e9..5ae3d44f6166e 100644
--- a/drivers/staging/gasket/gasket_core.c
+++ b/drivers/staging/gasket/gasket_core.c
@@ -2097,18 +2097,12 @@ int gasket_wait_with_reschedule(
 	while (retries < max_retries) {
 		tmp = gasket_dev_read_64(gasket_dev, bar, offset);
 		if ((tmp & mask) == val)
-			break;
+			return 0;
 		msleep(delay_ms);
 		retries++;
 	}
-	if (retries == max_retries) {
-		gasket_log_error(
-			gasket_dev,
-			"%s timeout: reg %llx timeout (%llu ms)",
-			__func__,
-			offset, max_retries * delay_ms);
-		return -ETIMEDOUT;
-	}
-	return 0;
+	gasket_log_error(gasket_dev, "%s timeout: reg %llx timeout (%llu ms)",
+			 __func__, offset, max_retries * delay_ms);
+	return -ETIMEDOUT;
 }
 EXPORT_SYMBOL(gasket_wait_with_reschedule);
-- 
2.18.0.203.gfac676dfb9-goog