stm class: Do not leak the chrdev in error path
Currently, the error path of stm_register_device() forgets to unregister
the chrdev. Fix this.
Reported-by: Alan Cox <alan.cox@intel.com>
Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Reviewed-by: Laurent Fert <laurent.fert@intel.com>
diff --git a/drivers/hwtracing/stm/core.c b/drivers/hwtracing/stm/core.c
index 18f176e..e55ed67 100644
--- a/drivers/hwtracing/stm/core.c
+++ b/drivers/hwtracing/stm/core.c
@@ -688,6 +688,8 @@
return 0;
err_device:
+ unregister_chrdev(stm->major, stm_data->name);
+
/* matches device_initialize() above */
put_device(&stm->dev);
err_free: