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| author | Jia-Ju Bai <baijiaju1990@gmail.com> | 2018-07-23 06:38:51 +0300 |
|---|---|---|
| committer | Marcel Holtmann <marcel@holtmann.org> | 2018-07-23 19:05:00 +0300 |
| commit | cf07e3412668ac1d7a346a9b86c8a21e5cffd6b6 (patch) | |
| tree | fc86899c2dfbe213ac9c131833dd996a12c33983 | |
| parent | 436018eee5eaf1891793efca38ed9455fa21e16c (diff) | |
| download | linux-cf07e3412668ac1d7a346a9b86c8a21e5cffd6b6.tar.xz | |
bluetooth: btusb: Replace GFP_ATOMIC with GFP_KERNEL in inject_cmd_complete()
inject_cmd_complete() is only called by btusb_send_frame_intel(),
which is set to hdev->send, and hdev->send() is never
called in atomic context.
inject_cmd_complete() 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/btusb.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c index fc39c2d343d7..572fd75fbcf6 100644 --- a/drivers/bluetooth/btusb.c +++ b/drivers/bluetooth/btusb.c @@ -1895,7 +1895,7 @@ static int inject_cmd_complete(struct hci_dev *hdev, __u16 opcode) struct hci_event_hdr *hdr; struct hci_ev_cmd_complete *evt; - skb = bt_skb_alloc(sizeof(*hdr) + sizeof(*evt) + 1, GFP_ATOMIC); + skb = bt_skb_alloc(sizeof(*hdr) + sizeof(*evt) + 1, GFP_KERNEL); if (!skb) return -ENOMEM; |