EDAC/ie31200: Fix error handling in ie31200_register_mci

EDAC/ie31200: Fix error handling in ie31200_register_mci

ie31200_register_mci() calls device_initialize() for priv->dev
unconditionally. However, in the error path, put_device() is not
called, leading to an imbalance. Similarly, in the unload path,
put_device() is missing.

Although edac_mc_free() eventually frees the memory, it does not
release the device initialized by device_initialize(). For code
readability and proper pairing of device_initialize()/put_device(),
add put_device() calls in both error and unload paths.

Found by code review.

Signed-off-by: Ma Ke <make24@iscas.ac.cn>
Signed-off-by: Tony Luck <tony.luck@intel.com>
Reviewed-by: Qiuxu Zhuo <qiuxu.zhuo@intel.com>
Link: https://patch.msgid.link/20251106084735.35017-1-make24@iscas.ac.cn