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authorIngo Molnar <mingo@kernel.org>2023-02-23 11:16:39 +0300
committerIngo Molnar <mingo@kernel.org>2023-02-23 11:16:39 +0300
commit585a78c1f77be305b1f6adad392f16047fb66ffd (patch)
tree765143b487d582832c7695c9fbcae141c35baa4c /drivers/tty/serial/serial_core.c
parent37064583f63eca93c98a9cdf2360485ea05f617a (diff)
parent69308402ca6f5b80a5a090ade0b13bd146891420 (diff)
downloadlinux-585a78c1f77be305b1f6adad392f16047fb66ffd.tar.xz
Merge branch 'linus' into objtool/core, to pick up Xen dependencies
Pick up dependencies - freshly merged upstream via xen-next - before applying dependent objtool changes. Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'drivers/tty/serial/serial_core.c')
-rw-r--r--drivers/tty/serial/serial_core.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/tty/serial/serial_core.c b/drivers/tty/serial/serial_core.c
index b9fbbee598b8..ec874f3a567c 100644
--- a/drivers/tty/serial/serial_core.c
+++ b/drivers/tty/serial/serial_core.c
@@ -2212,6 +2212,9 @@ EXPORT_SYMBOL_GPL(uart_parse_options);
* @parity: parity character - 'n' (none), 'o' (odd), 'e' (even)
* @bits: number of data bits
* @flow: flow control character - 'r' (rts)
+ *
+ * Locking: Caller must hold console_list_lock in order to serialize
+ * early initialization of the serial-console lock.
*/
int
uart_set_options(struct uart_port *port, struct console *co,
@@ -2619,7 +2622,9 @@ static int uart_poll_init(struct tty_driver *driver, int line, char *options)
if (!ret && options) {
uart_parse_options(options, &baud, &parity, &bits, &flow);
+ console_list_lock();
ret = uart_set_options(port, NULL, baud, parity, bits, flow);
+ console_list_unlock();
}
out:
mutex_unlock(&tport->mutex);