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

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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: Eduardo Valentin <edubezval@gmail.com>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
This commit is contained in:
Eduardo Valentin 2016-11-07 21:09:25 -08:00 committed by Zhang Rui
parent 38e7b549af
commit 95e3ed1513
1 changed files with 3 additions and 4 deletions
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7
drivers/thermal/thermal_core.c
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@ -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);