linux-kernel - [PATCH 1/3] staging: dgap: remove unnecessary if statement for checking NULL

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Date:	Wed, 8 Oct 2014 20:12:48 +0900
From:	Daeseok Youn <daeseok.youn@...il.com>
To:	lidza.louina@...il.com, markh@...pro.net
Cc:	markh@...pro.net, daeseok.youn@...il.com,
	gregkh@...uxfoundation.org, driverdev-devel@...uxdriverproject.org,
	devel@...verdev.osuosl.org, linux-kernel@...r.kernel.org,
	dan.carpenter@...cle.com
Subject: [PATCH 1/3] staging: dgap: remove unnecessary if statement for
 checking NULL

dgap_release_remap() function is only called after the memory
has been remapped so if statement for checking NULL doesn't
need.

And also release_mem_region() calls are moved after iounmap() calls.

Signed-off-by: Daeseok Youn <daeseok.youn@...il.com>
---
 drivers/staging/dgap/dgap.c |   13 ++++---------
 1 files changed, 4 insertions(+), 9 deletions(-)

diff --git a/drivers/staging/dgap/dgap.c b/drivers/staging/dgap/dgap.c
index d0be1ce..a48740f 100644
--- a/drivers/staging/dgap/dgap.c
+++ b/drivers/staging/dgap/dgap.c
@@ -1013,15 +1013,10 @@ static int dgap_do_remap(struct board_t *brd)
 
 static void dgap_release_remap(struct board_t *brd)
 {
-	if (brd->re_map_membase) {
-		release_mem_region(brd->membase, 0x200000);
-		iounmap(brd->re_map_membase);
-	}
-
-	if (brd->re_map_port) {
-		release_mem_region(brd->membase + PCI_IO_OFFSET, 0x200000);
-		iounmap(brd->re_map_port);
-	}
+	iounmap(brd->re_map_port);
+	iounmap(brd->re_map_membase);
+	release_mem_region(brd->membase + PCI_IO_OFFSET, 0x200000);
+	release_mem_region(brd->membase, 0x200000);
 }
 /*****************************************************************************
 *
-- 
1.7.1

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