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authorLukasz Majewski <l.majewski@samsung.com>2014-11-18 13:16:30 +0300
committerEduardo Valentin <edubezval@gmail.com>2014-12-09 04:32:56 +0300
commit9a3031dc3e7a5edfeb52ae8951f8bcd927351854 (patch)
tree27b350a5c4033f34bbfc7a35d54d041ecc595b26 /drivers/thermal
parent73904cbc1a5a5143323743209257d4668fadc7f3 (diff)
downloadlinux-9a3031dc3e7a5edfeb52ae8951f8bcd927351854.tar.xz
thermal:core:fix: Check return code of the ->get_max_state() callback
The return code from ->get_max_state() callback was not checked during binding cooling device to thermal zone device. Signed-off-by: Lukasz Majewski <l.majewski@samsung.com> Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
Diffstat (limited to 'drivers/thermal')
-rw-r--r--drivers/thermal/thermal_core.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/thermal/thermal_core.c b/drivers/thermal/thermal_core.c
index 43b90709585f..85679295bfd5 100644
--- a/drivers/thermal/thermal_core.c
+++ b/drivers/thermal/thermal_core.c
@@ -928,7 +928,7 @@ int thermal_zone_bind_cooling_device(struct thermal_zone_device *tz,
struct thermal_zone_device *pos1;
struct thermal_cooling_device *pos2;
unsigned long max_state;
- int result;
+ int result, ret;
if (trip >= tz->trips || (trip < 0 && trip != THERMAL_TRIPS_NONE))
return -EINVAL;
@@ -945,7 +945,9 @@ int thermal_zone_bind_cooling_device(struct thermal_zone_device *tz,
if (tz != pos1 || cdev != pos2)
return -EINVAL;
- cdev->ops->get_max_state(cdev, &max_state);
+ ret = cdev->ops->get_max_state(cdev, &max_state);
+ if (ret)
+ return ret;
/* lower default 0, upper default max_state */
lower = lower == THERMAL_NO_LIMIT ? 0 : lower;