Fixed compilation error introduced by "hid-ft260: Add serial driver" patch https://lore.kernel.org/all/20231218093153.192268-1-contact@xxxxxxxxxxxxxxxxxx/ You are using: gcc-13 (Ubuntu 13.2.0-4ubuntu3) 13.2.0 CC [M] /home/michael/sw/hid-ft260/hid-ft260.o /home/michael/sw/hid-ft260/hid-ft260.c:1426:35: error: initialization of ‘int (*)(struct tty_struct *, const unsigned char *, int)’ from incompatible pointer type ‘ssize_t (*)(struct tty_struct *, const unsigned char *, size_t)’ {aka ‘long int (*)(struct tty_struct *, const unsigned char *, long unsigned int)’} [-Werror=incompatible-pointer-types] 1426 | .write = ft260_uart_write, | ^~~~~~~~~~~~~~~~ /home/michael/sw/hid-ft260/hid-ft260.c:1426:35: note: (near initialization for ‘ft260_uart_ops.write’) cc1: some warnings being treated as errors make[3]: *** [scripts/Makefile.build:251: /home/michael/sw/hid-ft260/hid-ft260.o] Error 1 make[2]: *** [/usr/src/linux-headers-6.5.0-14-generic/Makefile:2037: /home/michael/sw/hid-ft260] Error 2 make[1]: *** [Makefile:234: __sub-make] Error 2 Signed-off-by: Michael Zaidman <michael.zaidman@xxxxxxxxx> --- drivers/hid/hid-ft260.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/hid/hid-ft260.c b/drivers/hid/hid-ft260.c index cc2cce3698e3..7273d401337a 100644 --- a/drivers/hid/hid-ft260.c +++ b/drivers/hid/hid-ft260.c @@ -1220,8 +1220,8 @@ static int ft260_uart_receive_chars(struct ft260_device *port, return ret; } -static ssize_t ft260_uart_write(struct tty_struct *tty, const unsigned char *buf, - size_t count) +static int ft260_uart_write(struct tty_struct *tty, const unsigned char *buf, + int count) { struct ft260_device *port = tty->driver_data; struct hid_device *hdev = port->hdev; -- 2.40.1
