usb: early: ehci-dbgp: Remove set but never checked variable 'ret'
'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@linaro.org>
Cc: Daniel Thompson <daniel.thompson@linaro.org>
Cc: Douglas Anderson <dianders@chromium.org>
Cc: Petr Mladek <pmladek@suse.com>
Cc: Yinghai Lu <yhlu.kernel@gmail.com>
Cc: Jason Wessel <jason.wessel@windriver.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Acked-by: "Eric W. Biederman" <ebiederm@xmission.com>
Link: https://lore.kernel.org/r/20200706133341.476881-26-lee.jones@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/drivers/usb/early/ehci-dbgp.c b/drivers/usb/early/ehci-dbgp.c
index 775cf70cf..b075dbf 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)) {
