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Commit 7e444858 authored by qctecmdr's avatar qctecmdr Committed by Gerrit - the friendly Code Review server
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Merge "drivers: thermal: Use lock before accessing thermal instance list"

parents dabe1619 014d6e75

drivers/thermal/thermal_sysfs.c

+7 −1
Original line number Diff line number Diff line
@@ -107,12 +107,16 @@ config_show(struct device *dev, struct device_attribute *attr, char *buf) 
	buf_offset = 0;

	buf1_offset = 0;

	buf2_offset = 0;



	mutex_lock(&tz->lock);

	list_for_each_entry(instance, &tz->thermal_instances, tz_node) {

		if (instance->cdev)

			buf_size++;

	}

	if (!buf_size)

	if (!buf_size) {

		mutex_unlock(&tz->lock);

		goto config_exit;

	}

	buf_size *= THERMAL_NAME_LENGTH;

	buf_cdev =  kzalloc(buf_size, GFP_KERNEL);

	buf_cdev_upper = kzalloc(buf_size, GFP_KERNEL);
@@ -153,6 +157,8 @@ config_show(struct device *dev, struct device_attribute *attr, char *buf) 
			}

		}

	}

	mutex_unlock(&tz->lock);



	offset += scnprintf(buf + offset, PAGE_SIZE - offset,

				"device %s\n", buf_cdev);

	offset += scnprintf(buf + offset, PAGE_SIZE - offset,