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bluetooth: bfusb: Replace GFP_ATOMIC with GFP_KERNEL in bfusb_send_frame() 

bfusb_send_frame() is only set to hdev->send, and hdev->send() is never
called in atomic context.

bfusb_send_frame() calls bt_skb_alloc() with GFP_ATOMIC, which is not
necessary. GFP_ATOMIC can be replaced with GFP_KERNEL.

This is found by a static analysis tool named DCNS written by myself.
I also manually check the kernel code before reporting it.

Signed-off-by: Jia-Ju Bai <baijiaju1990@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
This commit is contained in:
Jia-Ju Bai 2018-07-23 11:09:00 +08:00 committed by Marcel Holtmann
parent b71c69c26b
commit 6709514f26
1 changed files with 1 additions and 1 deletions
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2
drivers/bluetooth/bfusb.c
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@ -490,7 +490,7 @@ static int bfusb_send_frame(struct hci_dev *hdev, struct sk_buff *skb)
count = skb->len;
/* Max HCI frame size seems to be 1511 + 1 */
nskb = bt_skb_alloc(count + 32, GFP_ATOMIC);
nskb = bt_skb_alloc(count + 32, GFP_KERNEL);
if (!nskb) {
BT_ERR("Can't allocate memory for new packet");
return -ENOMEM;