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From: Len Brown <lenb@kernel.org>
To: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Cc: Anton Vorontsov <cbou@mail.ru>,
	David Woodhouse <dwmw2@infradead.org>,
	linux-acpi@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 3/3] ACPI / Battery: propagate sysfs error in acpi_battery_add()
Date: Sat, 16 Jul 2011 18:58:55 -0400 (EDT)	[thread overview]
Message-ID: <alpine.LFD.2.02.1107161857420.11045@x980> (raw)
In-Reply-To: <1310457809-2731-4-git-send-email-stefanha@linux.vnet.ibm.com>

applied, after merging with acpi-test.

merged version appended below.

thanks,
Len Brown, Intel Open Source Technology Center

>From eb03cb02b74df6dd0b653d5f6d976f16a434dfaf Mon Sep 17 00:00:00 2001
From: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Date: Tue, 12 Jul 2011 09:03:29 +0100
Subject: [PATCH] ACPI / Battery: propagate sysfs error in acpi_battery_add()
X-Patchwork-Hint: ignore

Make sure the error return from sysfs_add_battery() is checked and
propagated out from acpi_battery_add().

Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Signed-off-by: Len Brown <len.brown@intel.com>
---
 drivers/acpi/battery.c |   11 ++++++++---
 1 files changed, 8 insertions(+), 3 deletions(-)

diff --git a/drivers/acpi/battery.c b/drivers/acpi/battery.c
index c771768..ffce2f0 100644
--- a/drivers/acpi/battery.c
+++ b/drivers/acpi/battery.c
@@ -630,8 +630,11 @@ static int acpi_battery_update(struct acpi_battery *battery)
 			return result;
 		acpi_battery_init_alarm(battery);
 	}
-	if (!battery->bat.dev)
-		sysfs_add_battery(battery);
+	if (!battery->bat.dev) {
+		result = sysfs_add_battery(battery);
+		if (result)
+			return result;
+	}
 	result = acpi_battery_get_state(battery);
 	acpi_battery_quirks(battery);
 	return result;
@@ -982,7 +985,9 @@ static int acpi_battery_add(struct acpi_device *device)
 	if (ACPI_SUCCESS(acpi_get_handle(battery->device->handle,
 			"_BIX", &handle)))
 		set_bit(ACPI_BATTERY_XINFO_PRESENT, &battery->flags);
-	acpi_battery_update(battery);
+	result = acpi_battery_update(battery);
+	if (result)
+		goto fail;
 #ifdef CONFIG_ACPI_PROCFS_POWER
 	result = acpi_battery_add_fs(device);
 #endif
-- 
1.7.6.178.g55272


      reply	other threads:[~2011-07-16 22:58 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-07-12  8:03 [PATCH 0/3] ACPI / Battery: fix NULL pointer dereference from battery Stefan Hajnoczi
2011-07-12  8:03 ` [PATCH 1/3] power_supply: scrub device pointer if registration fails Stefan Hajnoczi
2011-07-12 15:09   ` Anton Vorontsov
2011-07-12 15:30     ` Stefan Hajnoczi
2011-07-12 17:23       ` Anton Vorontsov
2011-07-14  6:07         ` Stefan Hajnoczi
2011-07-12  8:03 ` [PATCH 2/3] ACPI / Battery: avoid acpi_battery_add() use-after-free Stefan Hajnoczi
2011-07-16 22:56   ` Len Brown
2011-07-12  8:03 ` [PATCH 3/3] ACPI / Battery: propagate sysfs error in acpi_battery_add() Stefan Hajnoczi
2011-07-16 22:58   ` Len Brown [this message]

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