Messages in this thread Patch in this message | | | Date | Fri, 7 Jul 2017 00:12:13 -0500 | From | "Gustavo A. R. Silva" <> | Subject | [PATCH] HID: hid-logitech-hidpp: add NULL check on devm_kmemdup() return value |
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Check return value from call to devm_kmemdup() in order to prevent a NULL pointer dereference.
Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.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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