i7core_edac: don't free on success

Signed-off-by: NTony Luck <tony.luck@intel.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

drivers/edac/i7core_edac.c

@@ -1856,6 +1856,7 @@ static int i7core_register_mci(struct i7core_dev *i7core_dev,
 	}
 
 fail:
+	if (rc < 0)
 		edac_mc_free(mci);
 	return rc;
 }