From 469d479f91b8277cc921d7525f31c832b25d9efb Mon Sep 17 00:00:00 2001 From: Michal Kazior Date: Mon, 8 Jun 2015 13:23:27 +0200 Subject: [PATCH] ath10k: prevent memory leak in wmi rx ops Found during code review. This was pretty much impossible to happen but better safe than sorry. Signed-off-by: Michal Kazior Signed-off-by: Kalle Valo --- drivers/net/wireless/ath/ath10k/wmi-tlv.c | 3 ++- drivers/net/wireless/ath/ath10k/wmi.c | 8 +++++--- 2 files changed, 7 insertions(+), 4 deletions(-) diff --git a/drivers/net/wireless/ath/ath10k/wmi-tlv.c b/drivers/net/wireless/ath/ath10k/wmi-tlv.c index 563fde73623c..8fdba3865c96 100644 --- a/drivers/net/wireless/ath/ath10k/wmi-tlv.c +++ b/drivers/net/wireless/ath/ath10k/wmi-tlv.c @@ -402,7 +402,7 @@ static void ath10k_wmi_tlv_op_rx(struct ath10k *ar, struct sk_buff *skb) id = MS(__le32_to_cpu(cmd_hdr->cmd_id), WMI_CMD_HDR_CMD_ID); if (skb_pull(skb, sizeof(struct wmi_cmd_hdr)) == NULL) - return; + goto out; trace_ath10k_wmi_event(ar, id, skb->data, skb->len); @@ -521,6 +521,7 @@ static void ath10k_wmi_tlv_op_rx(struct ath10k *ar, struct sk_buff *skb) break; } +out: dev_kfree_skb(skb); } diff --git a/drivers/net/wireless/ath/ath10k/wmi.c b/drivers/net/wireless/ath/ath10k/wmi.c index 226bd2141629..6c046c244705 100644 --- a/drivers/net/wireless/ath/ath10k/wmi.c +++ b/drivers/net/wireless/ath/ath10k/wmi.c @@ -3223,7 +3223,7 @@ static void ath10k_wmi_op_rx(struct ath10k *ar, struct sk_buff *skb) id = MS(__le32_to_cpu(cmd_hdr->cmd_id), WMI_CMD_HDR_CMD_ID); if (skb_pull(skb, sizeof(struct wmi_cmd_hdr)) == NULL) - return; + goto out; trace_ath10k_wmi_event(ar, id, skb->data, skb->len); @@ -3327,6 +3327,7 @@ static void ath10k_wmi_op_rx(struct ath10k *ar, struct sk_buff *skb) break; } +out: dev_kfree_skb(skb); } @@ -3340,7 +3341,7 @@ static void ath10k_wmi_10_1_op_rx(struct ath10k *ar, struct sk_buff *skb) id = MS(__le32_to_cpu(cmd_hdr->cmd_id), WMI_CMD_HDR_CMD_ID); if (skb_pull(skb, sizeof(struct wmi_cmd_hdr)) == NULL) - return; + goto out; trace_ath10k_wmi_event(ar, id, skb->data, skb->len); @@ -3463,7 +3464,7 @@ static void ath10k_wmi_10_2_op_rx(struct ath10k *ar, struct sk_buff *skb) id = MS(__le32_to_cpu(cmd_hdr->cmd_id), WMI_CMD_HDR_CMD_ID); if (skb_pull(skb, sizeof(struct wmi_cmd_hdr)) == NULL) - return; + goto out; trace_ath10k_wmi_event(ar, id, skb->data, skb->len); @@ -3571,6 +3572,7 @@ static void ath10k_wmi_10_2_op_rx(struct ath10k *ar, struct sk_buff *skb) break; } +out: dev_kfree_skb(skb); } -- 2.39.5