From: Rui Miguel Silva <rui.silva@linaro.org>
Date: Fri, 8 Jan 2016 13:53:42 +0000 (+0000)
Subject: greybus: power_supply: do not release failed supply alloc
X-Git-Tag: v4.9-rc1~119^2~378^2~21^2~853
X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=commitdiff_plain;h=7ccac20d59ca45a2efea93a24a99d57022ff8911;p=linux.git

greybus: power_supply: do not release failed supply alloc

If allocation of memory for each supply fail, we should get out of
release any individual supply.

Signed-off-by: Rui Miguel Silva <rui.silva@linaro.org>
Reported-by: Johan Hovold <johan@hovoldconsulting.com>
Reviewed-by: Johan Hovold <johan@hovoldconsulting.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
---

diff --git a/drivers/staging/greybus/power_supply.c b/drivers/staging/greybus/power_supply.c
index 1f3884bccf97..1ce57f6333da 100644
--- a/drivers/staging/greybus/power_supply.c
+++ b/drivers/staging/greybus/power_supply.c
@@ -569,6 +569,9 @@ static void _gb_power_supplies_release(struct gb_power_supplies *supplies)
 {
 	int i;
 
+	if (!supplies->supply)
+		return;
+
 	mutex_lock(&supplies->supplies_lock);
 	for (i = 0; i < supplies->supplies_count; i++)
 		_gb_power_supply_release(&supplies->supply[i]);