ASoC: sun4i-codec: return error code instead of NULL when create_card fails

When sun4i_codec_create_card fails, we do not assign a proper error
code to the return value. The return value would be 0 from the previous
function call, or we would have bailed out sooner. This would confuse
the driver core into thinking the device probe succeeded, when in fact
it didn't, leaving various devres based resources lingering.

Make the create_card function pass back a meaningful error code, and
assign it to the return value.

Fixes: 45fb6b6f2aa3 ("ASoC: sunxi: add support for the on-chip codec on
		      early Allwinner SoCs")
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Mark Brown <broonie@kernel.org>

path: root/net/mac80211/aes_gcm.h

/*
 * Copyright 2014-2015, Qualcomm Atheros, Inc.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 */

#ifndef AES_GCM_H
#define AES_GCM_H

#include <linux/crypto.h>

#define GCM_AAD_LEN	32

int ieee80211_aes_gcm_encrypt(struct crypto_aead *tfm, u8 *j_0, u8 *aad,
			      u8 *data, size_t data_len, u8 *mic);
int ieee80211_aes_gcm_decrypt(struct crypto_aead *tfm, u8 *j_0, u8 *aad,
			      u8 *data, size_t data_len, u8 *mic);
struct crypto_aead *ieee80211_aes_gcm_key_setup_encrypt(const u8 key[],
							size_t key_len);
void ieee80211_aes_gcm_key_free(struct crypto_aead *tfm);

#endif /* AES_GCM_H */