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Bluetooth: hci_uart: Fix dereferencing of ERR_PTR 

If h4_recv_buf() return ERR_PTR instead sk_buff pointer, it should be
cleared once PTR_ERR is completed for the further dereference such as
h4_recv(), or h4_close().

Signed-off-by: Chan-yeol Park <chanyeol.park@samsung.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
This commit is contained in:
Chan-yeol Park 2015-06-17 21:10:39 +09:00 committed by Marcel Holtmann
parent 30811fa663
commit 3713416763
3 changed files with 3 additions and 0 deletions
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1
drivers/bluetooth/hci_ath.c
View File

@ -192,6 +192,7 @@ static int ath_recv(struct hci_uart *hu, const void *data, int count)
if (IS_ERR(ath->rx_skb)) {
int err = PTR_ERR(ath->rx_skb);
BT_ERR("%s: Frame reassembly failed (%d)", hu->hdev->name, err);
ath->rx_skb = NULL;
return err;
}

1
drivers/bluetooth/hci_bcm.c
View File

@ -188,6 +188,7 @@ static int bcm_recv(struct hci_uart *hu, const void *data, int count)
if (IS_ERR(bcm->rx_skb)) {
int err = PTR_ERR(bcm->rx_skb);
BT_ERR("%s: Frame reassembly failed (%d)", hu->hdev->name, err);
bcm->rx_skb = NULL;
return err;
}

1
drivers/bluetooth/hci_h4.c
View File

@ -133,6 +133,7 @@ static int h4_recv(struct hci_uart *hu, const void *data, int count)
if (IS_ERR(h4->rx_skb)) {
int err = PTR_ERR(h4->rx_skb);
BT_ERR("%s: Frame reassembly failed (%d)", hu->hdev->name, err);
h4->rx_skb = NULL;
return err;
}