Commits
Jia-Ju Bai committed f36b507c14c
usb: gadget: r8a66597: Fix a possible sleep-in-atomic-context bugs in r8a66597_queue() The driver may sleep in an interrupt handler. The function call path (from bottom to top) in Linux-4.16.7 is: [FUNC] r8a66597_queue(GFP_KERNEL) drivers/usb/gadget/udc/r8a66597-udc.c, 1193: r8a66597_queue in get_status drivers/usb/gadget/udc/r8a66597-udc.c, 1301: get_status in setup_packet drivers/usb/gadget/udc/r8a66597-udc.c, 1381: setup_packet in irq_control_stage drivers/usb/gadget/udc/r8a66597-udc.c, 1508: irq_control_stage in r8a66597_irq (interrupt handler) To fix this bug, GFP_KERNEL is replaced with GFP_ATOMIC. This bug is found by my static analysis tool (DSAC-2) and checked by my code review. Signed-off-by: Jia-Ju Bai <baijiaju1990@gmail.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>