linux-kernel - [PATCH 42/76] ACPI: ec: Do request

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Message-id: <d6795fe32da13bde39ea483e42799a22daa730b5.1333101989.git.len.brown@intel.com>
Date:	Fri, 30 Mar 2012 06:13:45 -0400
From:	Len Brown <lenb@...nel.org>
To:	linux-acpi@...r.kernel.org, linux-pm@...ts.linux-foundation.org
Cc:	linux-kernel@...r.kernel.org, Andi Kleen <andi@...stfloor.org>,
	Andi Kleen <ak@...ux.intel.com>,
	Len Brown <len.brown@...el.com>
Subject: [PATCH 42/76] ACPI: ec: Do request_region outside WARN()

From: Andi Kleen <andi@...stfloor.org>

WARN() is not supposed to have side effects, so move the request_regions
outside.

Signed-off-by: Andi Kleen <ak@...ux.intel.com>
Signed-off-by: Len Brown <len.brown@...el.com>
---
 drivers/acpi/ec.c |    8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c
index b19a18d..3268dcf 100644
--- a/drivers/acpi/ec.c
+++ b/drivers/acpi/ec.c
@@ -812,10 +812,10 @@ static int acpi_ec_add(struct acpi_device *device)
 		first_ec = ec;
 	device->driver_data = ec;
 
-	WARN(!request_region(ec->data_addr, 1, "EC data"),
-	     "Could not request EC data io port 0x%lx", ec->data_addr);
-	WARN(!request_region(ec->command_addr, 1, "EC cmd"),
-	     "Could not request EC cmd io port 0x%lx", ec->command_addr);
+	ret = !!request_region(ec->data_addr, 1, "EC data");
+	WARN(!ret, "Could not request EC data io port 0x%lx", ec->data_addr);
+	ret = !!request_region(ec->command_addr, 1, "EC cmd");
+	WARN(!ret, "Could not request EC cmd io port 0x%lx", ec->command_addr);
 
 	pr_info(PREFIX "GPE = 0x%lx, I/O: command/status = 0x%lx, data = 0x%lx\n",
 			  ec->gpe, ec->command_addr, ec->data_addr);
-- 
1.7.10.rc2.19.gfae9d

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