'ret' hasn't been checked since the driver's inception in 2009. Fixes the following W=1 kernel build warning(s): drivers/usb/early/ehci-dbgp.c: In function ‘early_dbgp_write’: drivers/usb/early/ehci-dbgp.c:915:13: warning: variable ‘ret’ set but not used [-Wunused-but-set-variable] 915 | int chunk, ret; | ^~~ Cc: Sumit Garg <sumit.garg@xxxxxxxxxx> Cc: Daniel Thompson <daniel.thompson@xxxxxxxxxx> Cc: Douglas Anderson <dianders@xxxxxxxxxxxx> Cc: Petr Mladek <pmladek@xxxxxxxx> Cc: "Eric W. Biederman" <ebiederm@xxxxxxxxxxxx> Cc: Yinghai Lu <yhlu.kernel@xxxxxxxxx> Cc: Jason Wessel <jason.wessel@xxxxxxxxxxxxx> Signed-off-by: Lee Jones <lee.jones@xxxxxxxxxx> --- drivers/usb/early/ehci-dbgp.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/usb/early/ehci-dbgp.c b/drivers/usb/early/ehci-dbgp.c index 775cf70cfb3ed..b075dbfad730f 100644 --- a/drivers/usb/early/ehci-dbgp.c +++ b/drivers/usb/early/ehci-dbgp.c @@ -912,7 +912,7 @@ int __init early_dbgp_init(char *s) static void early_dbgp_write(struct console *con, const char *str, u32 n) { - int chunk, ret; + int chunk; char buf[DBGP_MAX_PACKET]; int use_cr = 0; u32 cmd, ctrl; @@ -951,8 +951,8 @@ static void early_dbgp_write(struct console *con, const char *str, u32 n) buf[chunk] = *str; } if (chunk > 0) { - ret = dbgp_bulk_write(USB_DEBUG_DEVNUM, - dbgp_endpoint_out, buf, chunk); + dbgp_bulk_write(USB_DEBUG_DEVNUM, + dbgp_endpoint_out, buf, chunk); } } if (unlikely(reset_run)) { -- 2.25.1