From: Johan Hovold <johan@kernel.org>
To: Mark Brown <broonie@kernel.org>
Cc: linux-spi@vger.kernel.org, linux-kernel@vger.kernel.org,
Johan Hovold <johan@kernel.org>, stable <stable@vger.kernel.org>
Subject: [PATCH] spi: fix parent-device reference leak
Date: Mon, 14 Dec 2015 16:16:19 +0100 [thread overview]
Message-ID: <1450106179-27623-1-git-send-email-johan@kernel.org> (raw)
Fix parent-device reference leak due to SPI-core taking an unnecessary
reference to the parent when allocating the master structure, a
reference that was never released.
Note that driver core takes its own reference to the parent when the
master device is registered.
Fixes: 49dce689ad4e ("spi doesn't need class_device")
Cc: stable <stable@vger.kernel.org> # v2.6.24
Signed-off-by: Johan Hovold <johan@kernel.org>
---
drivers/spi/spi.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c
index 2b0a8ec3affb..dee1cb87d24f 100644
--- a/drivers/spi/spi.c
+++ b/drivers/spi/spi.c
@@ -1705,7 +1705,7 @@ struct spi_master *spi_alloc_master(struct device *dev, unsigned size)
master->bus_num = -1;
master->num_chipselect = 1;
master->dev.class = &spi_master_class;
- master->dev.parent = get_device(dev);
+ master->dev.parent = dev;
spi_master_set_devdata(master, &master[1]);
return master;
--
2.4.10
reply other threads:[~2015-12-14 15:15 UTC|newest]
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