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Commit 95e3ed15 authored by Eduardo Valentin's avatar Eduardo Valentin Committed by Zhang Rui
Browse files

thermal: core: use kzalloc(sizeof(*ptr),...) 



As a safety check, this patch changes thermal
core to check for pointer content size, instead of type size,
while allocating memory.

Cc: Zhang Rui <rui.zhang@intel.com>
Cc: linux-pm@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: default avatarEduardo Valentin <edubezval@gmail.com>
Signed-off-by: default avatarZhang Rui <rui.zhang@intel.com>
parent 38e7b549

drivers/thermal/thermal_core.c

+3 −4
Original line number Diff line number Diff line
@@ -674,8 +674,7 @@ int thermal_zone_bind_cooling_device(struct thermal_zone_device *tz, 
	if (lower > upper || upper > max_state)

		return -EINVAL;



	dev =

	    kzalloc(sizeof(struct thermal_instance), GFP_KERNEL);

	dev = kzalloc(sizeof(*dev), GFP_KERNEL);

	if (!dev)

		return -ENOMEM;

	dev->tz = tz;
@@ -917,7 +916,7 @@ __thermal_cooling_device_register(struct device_node *np, 
	    !ops->set_cur_state)

		return ERR_PTR(-EINVAL);



	cdev = kzalloc(sizeof(struct thermal_cooling_device), GFP_KERNEL);

	cdev = kzalloc(sizeof(*cdev), GFP_KERNEL);

	if (!cdev)

		return ERR_PTR(-ENOMEM);
@@ -1163,7 +1162,7 @@ thermal_zone_device_register(const char *type, int trips, int mask, 
	if (trips > 0 && (!ops->get_trip_type || !ops->get_trip_temp))

		return ERR_PTR(-EINVAL);



	tz = kzalloc(sizeof(struct thermal_zone_device), GFP_KERNEL);

	tz = kzalloc(sizeof(*tz), GFP_KERNEL);

	if (!tz)

		return ERR_PTR(-ENOMEM);