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[PATCH 3.2 087/126] mfd: core: Fix device reference leak in mfd_clone_cell

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  [PATCH 3.2 087/126] mfd: core: Fix device reference leak in  mfd_clone_cell Ben Hutchings <ben@decadent.org.uk> - 2017-02-16 00:00 +0100

#1581765 — [PATCH 3.2 087/126] mfd: core: Fix device reference leak in mfd_clone_cell

3.2.85-rc1 review patch.  If anyone has any objections, please let me know.

------------------

From: Johan Hovold <johan@kernel.org>

commit 722f191080de641f023feaa7d5648caf377844f5 upstream.

Make sure to drop the reference taken by bus_find_device_by_name()
before returning from mfd_clone_cell().

Fixes: a9bbba996302 ("mfd: add platform_device sharing support for mfd")
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
 drivers/mfd/mfd-core.c | 2 ++
 1 file changed, 2 insertions(+)

--- a/drivers/mfd/mfd-core.c
+++ b/drivers/mfd/mfd-core.c
@@ -241,6 +241,8 @@ int mfd_clone_cell(const char *cell, con
 					clones[i]);
 	}
 
+	put_device(dev);
+
 	return 0;
 }
 EXPORT_SYMBOL(mfd_clone_cell);

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