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Commit 50f85e22 authored by Insu Yun's avatar Insu Yun Committed by Kalle Valo
Browse files

mwifiex: correctly handling kzalloc 



Since kzalloc can be failed in memory pressure,
it needs to be handled, otherwise NULL dereference could be happened

Signed-off-by: default avatarInsu Yun <wuninsu@gmail.com>
Signed-off-by: default avatarKalle Valo <kvalo@codeaurora.org>
parent 9ec855cc

drivers/net/wireless/marvell/mwifiex/sdio.c

+11 −0
Original line number Diff line number Diff line
@@ -2053,8 +2053,19 @@ static int mwifiex_init_sdio(struct mwifiex_adapter *adapter) 
	/* Allocate skb pointer buffers */

	card->mpa_rx.skb_arr = kzalloc((sizeof(void *)) *

				       card->mp_agg_pkt_limit, GFP_KERNEL);

	if (!card->mpa_rx.skb_arr) {

		kfree(card->mp_regs);

		return -ENOMEM;

	}



	card->mpa_rx.len_arr = kzalloc(sizeof(*card->mpa_rx.len_arr) *

				       card->mp_agg_pkt_limit, GFP_KERNEL);

	if (!card->mpa_rx.len_arr) {

		kfree(card->mp_regs);

		kfree(card->mpa_rx.skb_arr);

		return -ENOMEM;

	}



	ret = mwifiex_alloc_sdio_mpa_buffers(adapter,

					     card->mp_tx_agg_buf_size,

					     card->mp_rx_agg_buf_size);