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-rw-r--r--drivers/hwtracing/intel_th/core.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/hwtracing/intel_th/core.c b/drivers/hwtracing/intel_th/core.c
index 2033947..1be543e 100644
--- a/drivers/hwtracing/intel_th/core.c
+++ b/drivers/hwtracing/intel_th/core.c
@@ -189,6 +189,9 @@ static int intel_th_output_activate(struct intel_th_device *thdev)
if (!thdrv)
return -ENODEV;
+ if (!try_module_get(thdrv->driver.owner))
+ return -ENODEV;
+
if (thdrv->activate)
return thdrv->activate(thdev);
@@ -209,6 +212,8 @@ static void intel_th_output_deactivate(struct intel_th_device *thdev)
thdrv->deactivate(thdev);
else
intel_th_trace_disable(thdev);
+
+ module_put(thdrv->driver.owner);
}
static ssize_t active_show(struct device *dev, struct device_attribute *attr,
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