From: Sean Wang <sean.wang@xxxxxxxxxxxx> Ensure interrupts are not re-enabled when the IRQ handler has already been removed. This prevents unexpected IRQ handler execution due to stale or unhandled interrupts. Modify btmtksdio_txrx_work to check if bdev->func->irq_handler exists before calling sdio_writel to enable interrupts. Co-developed-by: Pedro Tsai <pedro.tsai@xxxxxxxxxxxx> Signed-off-by: Pedro Tsai <pedro.tsai@xxxxxxxxxxxx> Co-developed-by: Felix Freimann <felix.freimann@xxxxxxxxxxxx> Signed-off-by: Felix Freimann <felix.freimann@xxxxxxxxxxxx> Signed-off-by: Sean Wang <sean.wang@xxxxxxxxxxxx> --- drivers/bluetooth/btmtksdio.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/bluetooth/btmtksdio.c b/drivers/bluetooth/btmtksdio.c index bd5464bde174..edd5eead1e93 100644 --- a/drivers/bluetooth/btmtksdio.c +++ b/drivers/bluetooth/btmtksdio.c @@ -610,7 +610,8 @@ static void btmtksdio_txrx_work(struct work_struct *work) } while (int_status || time_is_before_jiffies(txrx_timeout)); /* Enable interrupt */ - sdio_writel(bdev->func, C_INT_EN_SET, MTK_REG_CHLPCR, NULL); + if (bdev->func->irq_handler) + sdio_writel(bdev->func, C_INT_EN_SET, MTK_REG_CHLPCR, NULL); sdio_release_host(bdev->func); -- 2.25.1
