From: Johan Hovold <johan@kernel.org>
Date: Tue, 1 Nov 2016 10:55:02 +0000 (+0100)
Subject: staging: greybus: arche-platform: fix device reference leak
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=d9966f1de990577b49903061cfcea2d1e85353fb;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git

staging: greybus: arche-platform: fix device reference leak

Make sure to drop the device reference taken by of_find_device_by_node()
before returning from arche_platform_change_state().

Note that this code is expected to be removed, but let's fix up the leak
nonetheless.

Fixes: 886aba558b9e ("greybus: arche-platform: Export fn to allow...")
Signed-off-by: Johan Hovold <johan@kernel.org>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Reviewed-by: Vaibhav Hiremath <hvaibhav.linux@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/staging/greybus/arche-platform.c b/drivers/staging/greybus/arche-platform.c
index 34307ac3f255..d33d6fe078ad 100644
--- a/drivers/staging/greybus/arche-platform.c
+++ b/drivers/staging/greybus/arche-platform.c
@@ -186,6 +186,7 @@ int arche_platform_change_state(enum arche_platform_state state,
 exit:
 	spin_unlock_irqrestore(&arche_pdata->wake_lock, flags);
 	mutex_unlock(&arche_pdata->platform_state_mutex);
+	put_device(&pdev->dev);
 	of_node_put(np);
 	return ret;
 }