arch/parisc/kernel/pdc_cons.c

29

return (c <= 0) ? NO_POLL_CHAR : c;

drivers/tty/hvc/hvc_console.c

871

return NO_POLL_CHAR;

drivers/tty/mips_ejtag_fdc.c

1193

return NO_POLL_CHAR;

drivers/tty/mips_ejtag_fdc.c

1201

return NO_POLL_CHAR;

drivers/tty/serial/8250/8250_port.c

2018

return NO_POLL_CHAR;

drivers/tty/serial/amba-pl011.c

1750

return NO_POLL_CHAR;

drivers/tty/serial/amba-pl011.c

2662

return NO_POLL_CHAR;

drivers/tty/serial/amba-pl011.c

2677

if (ch == NO_POLL_CHAR)

drivers/tty/serial/ar933x_uart.c

580

return NO_POLL_CHAR;

drivers/tty/serial/bcm63xx_uart.c

620

return NO_POLL_CHAR;

drivers/tty/serial/cpm_uart.c

1094

return NO_POLL_CHAR;

drivers/tty/serial/cpm_uart.c

1131

if (ret == NO_POLL_CHAR)

drivers/tty/serial/cpm_uart.c

1165

return c == NO_POLL_CHAR ? -1 : c;

drivers/tty/serial/esp32_acm.c

260

return NO_POLL_CHAR;

drivers/tty/serial/esp32_acm.c

335

if (c == NO_POLL_CHAR)

drivers/tty/serial/esp32_uart.c

496

return NO_POLL_CHAR;

drivers/tty/serial/esp32_uart.c

625

if (c == NO_POLL_CHAR)

drivers/tty/serial/fsl_lpuart.c

689

return NO_POLL_CHAR;

drivers/tty/serial/fsl_lpuart.c

736

return NO_POLL_CHAR;

drivers/tty/serial/imx.c

1997

return NO_POLL_CHAR;

drivers/tty/serial/kgdboc.c

469

return NO_POLL_CHAR;

drivers/tty/serial/meson_uart.c

468

c = NO_POLL_CHAR;

drivers/tty/serial/msm_serial.c

1452

return NO_POLL_CHAR;

drivers/tty/serial/msm_serial.c

1485

c = NO_POLL_CHAR;

drivers/tty/serial/mvebu-uart.c

614

return NO_POLL_CHAR;

drivers/tty/serial/omap-serial.c

1125

status = NO_POLL_CHAR;

drivers/tty/serial/owl-uart.c

449

return NO_POLL_CHAR;

drivers/tty/serial/pch_uart.c

1472

return NO_POLL_CHAR;

drivers/tty/serial/pmac_zilog.c

1300

return NO_POLL_CHAR;

drivers/tty/serial/qcom_geni_serial.c

1493

if (ch == NO_POLL_CHAR)

drivers/tty/serial/qcom_geni_serial.c

396

return NO_POLL_CHAR;

drivers/tty/serial/samsung_tty.c

2234

return NO_POLL_CHAR;

drivers/tty/serial/samsung_tty.c

2772

if (ch == NO_POLL_CHAR)

drivers/tty/serial/sh-sci.c

889

return NO_POLL_CHAR;

drivers/tty/serial/sifive.c

720

return NO_POLL_CHAR;

drivers/tty/serial/st-asc.c

648

return NO_POLL_CHAR;

drivers/tty/serial/stm32-usart.c

1459

return NO_POLL_CHAR;

drivers/tty/serial/sunplus-uart.c

473

return NO_POLL_CHAR;

drivers/tty/serial/sunzilog.c

1024

return NO_POLL_CHAR;

drivers/tty/serial/tegra-utc.c

320

return NO_POLL_CHAR;

drivers/tty/serial/uartlite.c

434

return NO_POLL_CHAR;

drivers/tty/serial/vt8500_serial.c

539

return NO_POLL_CHAR;

drivers/tty/serial/xilinx_uartps.c

1205

c = NO_POLL_CHAR;

drivers/usb/early/ehci-dbgp.c

1023

return NO_POLL_CHAR;

drivers/usb/early/ehci-dbgp.c

1071

if (ret != NO_POLL_CHAR) {

kernel/debug/debug_core.c

1192

if (ret == NO_POLL_CHAR)

kernel/debug/gdbstub.c

84

while (ret == NO_POLL_CHAR)