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authorJia-Ju Bai <baijiaju1990@gmail.com>2018-07-23 11:56:51 +0800
committerMarcel Holtmann <marcel@holtmann.org>2018-07-23 18:05:01 +0200
commit25a13e382de2b0f844cd6303e45f2b33c8fbabac (patch)
tree0a36f6fcd5f8094e1454995c0e7618febba92058 /drivers/bluetooth
parentf6ebfc24e78d99ebfa0f8d1761b1d77b733dcbb9 (diff)
downloadlinux-25a13e382de2b0f844cd6303e45f2b33c8fbabac.tar.bz2
bluetooth: hci_qca: Replace GFP_ATOMIC with GFP_KERNEL
qca_open() and qca_set_baudrate() are never called in atomic context. They call kzalloc() and 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>
Diffstat (limited to 'drivers/bluetooth')
-rw-r--r--drivers/bluetooth/hci_qca.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/bluetooth/hci_qca.c b/drivers/bluetooth/hci_qca.c
index 51790dd02afb..8431be3a837f 100644
--- a/drivers/bluetooth/hci_qca.c
+++ b/drivers/bluetooth/hci_qca.c
@@ -405,7 +405,7 @@ static int qca_open(struct hci_uart *hu)
BT_DBG("hu %p qca_open", hu);
- qca = kzalloc(sizeof(struct qca_data), GFP_ATOMIC);
+ qca = kzalloc(sizeof(struct qca_data), GFP_KERNEL);
if (!qca)
return -ENOMEM;
@@ -891,7 +891,7 @@ static int qca_set_baudrate(struct hci_dev *hdev, uint8_t baudrate)
cmd[4] = baudrate;
- skb = bt_skb_alloc(sizeof(cmd), GFP_ATOMIC);
+ skb = bt_skb_alloc(sizeof(cmd), GFP_KERNEL);
if (!skb) {
bt_dev_err(hdev, "Failed to allocate baudrate packet");
return -ENOMEM;