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Date: Fri, 7 Jul 2017 00:12:13 -0500
From: "Gustavo A. R. Silva" <garsilva@...eddedor.com>
To: Jiri Kosina <jikos@...nel.org>,
Benjamin Tissoires <benjamin.tissoires@...hat.com>
Cc: linux-input@...r.kernel.org, linux-kernel@...r.kernel.org,
"Gustavo A. R. Silva" <garsilva@...eddedor.com>
Subject: [PATCH] HID: hid-logitech-hidpp: add NULL check on devm_kmemdup()
return value
Check return value from call to devm_kmemdup()
in order to prevent a NULL pointer dereference.
Signed-off-by: Gustavo A. R. Silva <garsilva@...eddedor.com>
---
drivers/hid/hid-logitech-hidpp.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/hid/hid-logitech-hidpp.c b/drivers/hid/hid-logitech-hidpp.c
index 41b3946..501e16a 100644
--- a/drivers/hid/hid-logitech-hidpp.c
+++ b/drivers/hid/hid-logitech-hidpp.c
@@ -2732,6 +2732,9 @@ static int hidpp_initialize_battery(struct hidpp_device *hidpp)
hidpp_battery_props,
sizeof(hidpp_battery_props),
GFP_KERNEL);
+ if (!battery_props)
+ return -ENOMEM;
+
num_battery_props = ARRAY_SIZE(hidpp_battery_props) - 2;
if (hidpp->capabilities & HIDPP_CAPABILITY_BATTERY_MILEAGE)
--
2.5.0
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