usb_probe() is never called in atomic context. It calls usb_alloc_coherent() 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. Signed-off-by: Jia-Ju Bai <baijiaju1990@xxxxxxxxx> --- drivers/input/misc/yealink.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/input/misc/yealink.c b/drivers/input/misc/yealink.c index f0c9bf87b4e3..1365cd94ed9b 100644 --- a/drivers/input/misc/yealink.c +++ b/drivers/input/misc/yealink.c @@ -894,12 +894,12 @@ static int usb_probe(struct usb_interface *intf, const struct usb_device_id *id) /* allocate usb buffers */ yld->irq_data = usb_alloc_coherent(udev, USB_PKT_LEN, - GFP_ATOMIC, &yld->irq_dma); + GFP_KERNEL, &yld->irq_dma); if (yld->irq_data == NULL) return usb_cleanup(yld, -ENOMEM); yld->ctl_data = usb_alloc_coherent(udev, USB_PKT_LEN, - GFP_ATOMIC, &yld->ctl_dma); + GFP_KERNEL, &yld->ctl_dma); if (!yld->ctl_data) return usb_cleanup(yld, -ENOMEM); -- 2.17.0 -- To unsubscribe from this list: send the line "unsubscribe linux-input" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
