Messages in this thread Patch in this message |  | | From | Thierry Escande <> | Subject | [PATCH] Bluetooth: hci_qca: Fix "Sleep inside atomic section" warning | Date | Tue, 29 May 2018 18:37:16 +0200 |
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This patch fixes the following warning during boot:
do not call blocking ops when !TASK_RUNNING; state=1 set at [<(ptrval)>] qca_setup+0x194/0x750 [hci_uart] WARNING: CPU: 2 PID: 1878 at kernel/sched/core.c:6135 __might_sleep+0x7c/0x88
In qca_set_baudrate(), the current task state is set to TASK_UNINTERRUPTIBLE before going to sleep for 300ms. It was then restored to TASK_INTERRUPTIBLE. This patch sets the current task state back to TASK_RUNNING instead.
Signed-off-by: Thierry Escande <thierry.escande@linaro.org> --- drivers/bluetooth/hci_qca.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/bluetooth/hci_qca.c b/drivers/bluetooth/hci_qca.c index f05382b5a65d..51790dd02afb 100644 --- a/drivers/bluetooth/hci_qca.c +++ b/drivers/bluetooth/hci_qca.c @@ -910,7 +910,7 @@ static int qca_set_baudrate(struct hci_dev *hdev, uint8_t baudrate) */ set_current_state(TASK_UNINTERRUPTIBLE); schedule_timeout(msecs_to_jiffies(BAUDRATE_SETTLE_TIMEOUT_MS)); - set_current_state(TASK_INTERRUPTIBLE); + set_current_state(TASK_RUNNING); return 0; } -- 2.14.1
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