EDAC/x38: Fix a resource leak in x38_probe1()

EDAC/x38: Fix a resource leak in x38_probe1()

commit 0ff7c44106b4715fc27a2e455d9f57f1dfcfd54f upstream.

If edac_mc_alloc() fails, also unmap the window.

  [ bp: Use separate labels, turning it into the classic unwind pattern. ]

Fixes: df8bc08c192f ("edac x38: new MC driver module")
Signed-off-by: Haoxiang Li <lihaoxiang@isrc.iscas.ac.cn>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Cc: stable@vger.kernel.org
Link: https://patch.msgid.link/20251223124350.1496325-1-lihaoxiang@isrc.iscas.ac.cn
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>