From: Johan Hovold <johan@kernel.org>
Date: Tue, 1 Nov 2016 10:38:18 +0000 (+0100)
Subject: mfd: core: Fix device reference leak in mfd_clone_cell
X-Git-Tag: v4.8.11~24
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=8c7ea73e3a9baa74473a48207af1063f0f6f57de;p=thirdparty%2Fkernel%2Fstable.git

mfd: core: Fix device reference leak in mfd_clone_cell

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: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/mfd/mfd-core.c b/drivers/mfd/mfd-core.c
index 3ac486a597f3c..c57e407020f11 100644
--- a/drivers/mfd/mfd-core.c
+++ b/drivers/mfd/mfd-core.c
@@ -399,6 +399,8 @@ int mfd_clone_cell(const char *cell, const char **clones, size_t n_clones)
 					clones[i]);
 	}
 
+	put_device(dev);
+
 	return 0;
 }
 EXPORT_SYMBOL(mfd_clone_cell);