iwlwifi: pcie: fix erroneous "Read failed message"

Current pci dumping code code is always falling to the error
path, resulting with a constant "Read failed" message, also
for the successful reads.

Fixes: a5c932e41fdd ("iwlwifi: pcie: dump registers when HW becomes inaccessible")
Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>

drivers/net/wireless/intel/iwlwifi/pcie/trans.c

@@ -166,6 +166,7 @@ static void iwl_trans_pcie_dump_regs(struct iwl_trans *trans)
 		print_hex_dump(KERN_ERR, prefix, DUMP_PREFIX_OFFSET, 32,
 			       4, buf, i, 0);
 	}
+	goto out;
 
 err_read:
 	print_hex_dump(KERN_ERR, prefix, DUMP_PREFIX_OFFSET, 32, 4, buf, i, 0);