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From: "Uwe Kleine-König" <u.kleine-koenig@pengutronix.de>
To: Russell King <linux@armlinux.org.uk>,
	Eric Auger <eric.auger@redhat.com>,
	Alex Williamson <alex.williamson@redhat.com>,
	Cornelia Huck <cohuck@redhat.com>
Cc: linux-kernel@vger.kernel.org, kernel@pengutronix.de,
	linux-arm-kernel@lists.infradead.org, kvm@vger.kernel.org,
	Arnd Bergmann <arnd@arndb.de>
Subject: [PATCH v3 3/5] vfio: platform: simplify device removal
Date: Tue, 26 Jan 2021 17:58:33 +0100	[thread overview]
Message-ID: <20210126165835.687514-4-u.kleine-koenig@pengutronix.de> (raw)
In-Reply-To: <20210126165835.687514-1-u.kleine-koenig@pengutronix.de>

vfio_platform_remove_common() cannot return non-NULL in
vfio_amba_remove() as the latter is only called if vfio_amba_probe()
returned success.

Diagnosed-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Eric Auger <eric.auger@redhat.com>
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
---
 drivers/vfio/platform/vfio_amba.c | 14 +++++---------
 1 file changed, 5 insertions(+), 9 deletions(-)

diff --git a/drivers/vfio/platform/vfio_amba.c b/drivers/vfio/platform/vfio_amba.c
index 9636a2afaecd..7b3ebf1558e1 100644
--- a/drivers/vfio/platform/vfio_amba.c
+++ b/drivers/vfio/platform/vfio_amba.c
@@ -73,16 +73,12 @@ static int vfio_amba_probe(struct amba_device *adev, const struct amba_id *id)
 
 static int vfio_amba_remove(struct amba_device *adev)
 {
-	struct vfio_platform_device *vdev;
-
-	vdev = vfio_platform_remove_common(&adev->dev);
-	if (vdev) {
-		kfree(vdev->name);
-		kfree(vdev);
-		return 0;
-	}
+	struct vfio_platform_device *vdev =
+		vfio_platform_remove_common(&adev->dev);
 
-	return -EINVAL;
+	kfree(vdev->name);
+	kfree(vdev);
+	return 0;
 }
 
 static const struct amba_id pl330_ids[] = {
-- 
2.29.2


  parent reply	other threads:[~2021-01-27  0:00 UTC|newest]

Thread overview: 31+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-01-26 16:58 [PATCH v3 0/5] amba: minor fix and various cleanups Uwe Kleine-König
2021-01-26 16:58 ` [PATCH v3 1/5] amba: Fix resource leak for drivers without .remove Uwe Kleine-König
2021-01-26 16:58 ` [PATCH v3 2/5] amba: reorder functions Uwe Kleine-König
2021-01-26 16:58 ` Uwe Kleine-König [this message]
2021-01-26 16:58 ` [PATCH v3 4/5] amba: Make the remove callback return void Uwe Kleine-König
2021-01-26 17:08   ` Suzuki K Poulose
2021-01-26 17:56     ` Uwe Kleine-König
2021-01-26 19:05       ` Russell King - ARM Linux admin
2021-01-26 17:30   ` Vinod Koul
2021-01-26 19:24   ` Guenter Roeck
2021-01-27  6:47   ` Wolfram Sang
2021-01-27  6:50   ` Takashi Iwai
2021-01-27  8:12   ` Vladimir Zapolskiy
2021-01-27 12:03   ` Greg Kroah-Hartman
2021-02-03 13:18   ` Auger Eric
2021-01-26 16:58 ` [PATCH v3 5/5] amba: Make use of bus_type functions Uwe Kleine-König
2021-02-02 10:49 ` [PATCH v3 0/5] amba: minor fix and various cleanups Russell King - ARM Linux admin
2021-02-03  7:45   ` Uwe Kleine-König
2021-02-02 13:53 ` [GIT PULL] immutable branch for amba changes targeting v5.12-rc1 Uwe Kleine-König
2021-02-02 14:06   ` Greg Kroah-Hartman
2021-02-04 16:52     ` Russell King - ARM Linux admin
2021-02-04 16:56       ` Greg Kroah-Hartman
2021-02-04 16:59         ` Russell King - ARM Linux admin
2021-02-04 18:15           ` Uwe Kleine-König
2021-02-05  9:37             ` Uwe Kleine-König
2021-02-05 10:18               ` Greg Kroah-Hartman
2021-02-05 10:56                 ` Uwe Kleine-König
2021-02-05 11:07                   ` Greg Kroah-Hartman
2021-02-02 19:43   ` [PATCH] mailbox: arm_mhuv2: make remove callback return void Uwe Kleine-König
2021-02-03  2:57     ` Viresh Kumar
2021-02-02 21:35   ` [GIT PULL] immutable branch for amba changes targeting v5.12-rc1 Uwe Kleine-König

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