diff options
| author | Douglas Anderson <dianders@chromium.org> | 2018-10-31 01:11:07 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-11-09 20:07:18 +0300 |
| commit | 596f63da42b92863b40ea4eb29c5b40bfa3e0ef5 (patch) | |
| tree | e906d45291a9883a5e8bc4690b34503cf97eb8ea /drivers/tty/serial/8250/8250_fsl.c | |
| parent | 3e6f88068314ffdba61a19f48ab0118f50424348 (diff) | |
| download | linux-596f63da42b92863b40ea4eb29c5b40bfa3e0ef5.tar.xz | |
serial: 8250: Process sysrq at port unlock time
Let's take advantage of the new ("serial: core: Allow processing sysrq
at port unlock time") to handle sysrqs more cleanly.
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/tty/serial/8250/8250_fsl.c')
| -rw-r--r-- | drivers/tty/serial/8250/8250_fsl.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/tty/serial/8250/8250_fsl.c b/drivers/tty/serial/8250/8250_fsl.c index 6640a4c7ddd1..ff3dcaea5d93 100644 --- a/drivers/tty/serial/8250/8250_fsl.c +++ b/drivers/tty/serial/8250/8250_fsl.c @@ -1,4 +1,8 @@ // SPDX-License-Identifier: GPL-2.0 +#if defined(CONFIG_SERIAL_8250_CONSOLE) && defined(CONFIG_MAGIC_SYSRQ) +#define SUPPORT_SYSRQ +#endif + #include <linux/serial_reg.h> #include <linux/serial_8250.h> @@ -54,7 +58,7 @@ int fsl8250_handle_irq(struct uart_port *port) serial8250_tx_chars(up); up->lsr_saved_flags = orig_lsr; - spin_unlock_irqrestore(&up->port.lock, flags); + uart_unlock_and_check_sysrq(&up->port, flags); return 1; } EXPORT_SYMBOL_GPL(fsl8250_handle_irq); |