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265aac26bc
In the error path of fsi_master_register(), we currently use device_unregister(). This will cause the last reference to the structure to be dropped, thus freeing the enclosing structure, which isn't what the callers want. Use device_del() instead so that we return to the caller with a refcount of 1. The caller can then assume that it must use put_device() after a call to fsi_master_register() regardless of whether the latter suceeded or failed. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>