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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>
This commit is contained in:
Alexander Shishkin 2016-03-04 16:36:10 +02:00
parent 8fa11d1c13
commit cbe4a61d1d
1 changed files with 2 additions and 0 deletions
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2
drivers/hwtracing/stm/core.c
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@ -688,6 +688,8 @@ int stm_register_device(struct device *parent, struct stm_data *stm_data,
return 0;
err_device:
unregister_chrdev(stm->major, stm_data->name);
/* matches device_initialize() above */
put_device(&stm->dev);
err_free: