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: v3.10.105~31
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=26b5a4a56fd60530d0ab3b51a7fda5841d4f9316;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: Willy Tarreau <w@1wt.eu>
---

diff --git a/drivers/mfd/mfd-core.c b/drivers/mfd/mfd-core.c
index 7604f4e5df40a..af6a245dc5057 100644
--- a/drivers/mfd/mfd-core.c
+++ b/drivers/mfd/mfd-core.c
@@ -263,6 +263,8 @@ 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);