From: Erik Arfvidson <erik.arfvidson@unisys.com>
Date: Sat, 11 Jun 2016 01:48:00 +0000 (-0400)
Subject: staging: unisys: visorbus: check parahotplug_request_complete_result
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=80224f064ead5e73d1cf7aacd20a61b5999dfdd6;p=GitHub%2FLineageOS%2FG12%2Fandroid_kernel_amlogic_linux-4.9.git

staging: unisys: visorbus: check parahotplug_request_complete_result

This patch modifies the caller of parahotplug_request_complete()
to check the return value and return appropriate result.

Signed-off-by: Erik Arfvidson <erik.arfvidson@unisys.com>
Signed-off-by: David Kershner <david.kershner@unisys.com>
Reviewed-by: Tim Sell <Timothy.Sell@unisys.com>
Acked-By: Neil Horman <nhorman@tuxdriver.com>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/staging/unisys/visorbus/visorchipset.c b/drivers/staging/unisys/visorbus/visorchipset.c
index d248c946a13b..7f44913bad75 100644
--- a/drivers/staging/unisys/visorbus/visorchipset.c
+++ b/drivers/staging/unisys/visorbus/visorchipset.c
@@ -2036,11 +2036,14 @@ static ssize_t devicedisabled_store(struct device *dev,
 				    const char *buf, size_t count)
 {
 	unsigned int id;
+	int err;
 
 	if (kstrtouint(buf, 10, &id))
 		return -EINVAL;
 
-	parahotplug_request_complete(id, 0);
+	err = parahotplug_request_complete(id, 0);
+	if (err < 0)
+		return err;
 	return count;
 }