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| author | Jia-Ju Bai <baijiaju1990@gmail.com> | 2018-07-23 11:17:35 +0800 |
|---|---|---|
| committer | Marcel Holtmann <marcel@holtmann.org> | 2018-07-23 18:05:00 +0200 |
| commit | 5f9c6580f6324e279417fc66e80ade0c42bfa9d9 (patch) | |
| tree | 5188e346ee90d39e7d7dfae6e6b836f18c7a7494 | |
| parent | 6709514f266e9163f9f579006496fbc8bc986d80 (diff) | |
| download | linux-stable-5f9c6580f6324e279417fc66e80ade0c42bfa9d9.tar.gz linux-stable-5f9c6580f6324e279417fc66e80ade0c42bfa9d9.tar.bz2 linux-stable-5f9c6580f6324e279417fc66e80ade0c42bfa9d9.zip | |
bluetooth: bluecard_cs: Replace GFP_ATOMIC with GFP_KERNEL in bluecard_hci_set_baud_rate()
bluecard_hci_set_baud_rate() is never called in atomic context.
bluecard_hci_set_baud_rate() is only by bluecard_hci_open(), which is
set to hdev->open, and hdev->open() is never called in atomic context.
bluecard_hci_set_baud_rate() 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>
| -rw-r--r-- | drivers/bluetooth/bluecard_cs.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/bluetooth/bluecard_cs.c b/drivers/bluetooth/bluecard_cs.c index 82437a69f99c..cc6e56223656 100644 --- a/drivers/bluetooth/bluecard_cs.c +++ b/drivers/bluetooth/bluecard_cs.c @@ -565,7 +565,7 @@ static int bluecard_hci_set_baud_rate(struct hci_dev *hdev, int baud) /* Ericsson baud rate command */ unsigned char cmd[] = { HCI_COMMAND_PKT, 0x09, 0xfc, 0x01, 0x03 }; - skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC); + skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_KERNEL); if (!skb) { BT_ERR("Can't allocate mem for new packet"); return -1; |