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authorLinus Torvalds <torvalds@linux-foundation.org>2024-03-21 12:44:10 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2024-03-21 12:44:10 -0700
commit3bcb0bf65c2b8d67dbe7509da8d1461ee4445db7 (patch)
treeed0506aa0429318deacaf08cbec74ccf66a441c3 /kernel
parente09bf86f3d53ecf4da61163d88036c4c16419d70 (diff)
parentd6c0d892b44cd16e0421909cf7f2883b9e625e4a (diff)
Merge tag 'tty-6.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
Pull tty / serial driver updates from Greg KH: "Here is the big set of TTY/Serial driver updates and cleanups for 6.9-rc1. Included in here are: - more tty cleanups from Jiri - loads of 8250 driver cleanups from Andy - max310x driver updates - samsung serial driver updates - uart_prepare_sysrq_char() updates for many drivers - platform driver remove callback void cleanups - stm32 driver updates - other small tty/serial driver updates All of these have been in linux-next for a long time with no reported issues" * tag 'tty-6.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (199 commits) dt-bindings: serial: stm32: add power-domains property serial: 8250_dw: Replace ACPI device check by a quirk serial: Lock console when calling into driver before registration serial: 8250_uniphier: Switch to use uart_read_port_properties() serial: 8250_tegra: Switch to use uart_read_port_properties() serial: 8250_pxa: Switch to use uart_read_port_properties() serial: 8250_omap: Switch to use uart_read_port_properties() serial: 8250_of: Switch to use uart_read_port_properties() serial: 8250_lpc18xx: Switch to use uart_read_port_properties() serial: 8250_ingenic: Switch to use uart_read_port_properties() serial: 8250_dw: Switch to use uart_read_port_properties() serial: 8250_bcm7271: Switch to use uart_read_port_properties() serial: 8250_bcm2835aux: Switch to use uart_read_port_properties() serial: 8250_aspeed_vuart: Switch to use uart_read_port_properties() serial: port: Introduce a common helper to read properties serial: core: Add UPIO_UNKNOWN constant for unknown port type serial: core: Move struct uart_port::quirks closer to possible values serial: sh-sci: Call sci_serial_{in,out}() directly serial: core: only stop transmit when HW fifo is empty serial: pch: Use uart_prepare_sysrq_char(). ...
Diffstat (limited to 'kernel')
-rw-r--r--kernel/printk/printk.c21
1 files changed, 18 insertions, 3 deletions
diff --git a/kernel/printk/printk.c b/kernel/printk/printk.c
index a000bef51177..ca5146006b94 100644
--- a/kernel/printk/printk.c
+++ b/kernel/printk/printk.c
@@ -3269,6 +3269,21 @@ static int __init keep_bootcon_setup(char *str)
early_param("keep_bootcon", keep_bootcon_setup);
+static int console_call_setup(struct console *newcon, char *options)
+{
+ int err;
+
+ if (!newcon->setup)
+ return 0;
+
+ /* Synchronize with possible boot console. */
+ console_lock();
+ err = newcon->setup(newcon, options);
+ console_unlock();
+
+ return err;
+}
+
/*
* This is called by register_console() to try to match
* the newly registered console with any of the ones selected
@@ -3304,8 +3319,8 @@ static int try_enable_preferred_console(struct console *newcon,
if (_braille_register_console(newcon, c))
return 0;
- if (newcon->setup &&
- (err = newcon->setup(newcon, c->options)) != 0)
+ err = console_call_setup(newcon, c->options);
+ if (err)
return err;
}
newcon->flags |= CON_ENABLED;
@@ -3331,7 +3346,7 @@ static void try_enable_default_console(struct console *newcon)
if (newcon->index < 0)
newcon->index = 0;
- if (newcon->setup && newcon->setup(newcon, NULL) != 0)
+ if (console_call_setup(newcon, NULL) != 0)
return;
newcon->flags |= CON_ENABLED;