In this patch series are fixes for issues I found during recent tests of an MCP2221 board. - you can confuse the kernel driver when using the chip from user mode via /dev/hidrawX, typically leading to a NULL pointer dereference in the driver's HID raw event handler - the driver needs > 15s to initialize because the HID raw handling is not enabled during initialization of the GPIO part - data shared with the bottom half code is not protected from concurrent access - the rxbuf pointer can become invalid or even stale if the device would send unsolicited reports Enrik Berkhan (4): HID: mcp2221: don't connect hidraw HID: mcp2221: enable HID I/O during GPIO probe HID: mcp2221: protect shared data with spin lock HID: mcp2221: avoid stale rxbuf pointer drivers/hid/hid-mcp2221.c | 114 ++++++++++++++++++++++++++++++++------ 1 file changed, 97 insertions(+), 17 deletions(-) -- 2.34.1
