diff options
| author | Maciej W. Rozycki <macro@orcam.me.uk> | 2026-04-10 18:19:31 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2026-05-11 17:01:55 +0200 |
| commit | d15cd40cb1858f75846eaafa9a6bca841b790a92 (patch) | |
| tree | adaca1793b91eda1c9ff18e4d5beee1979e279ce | |
| parent | 254f49634ee16a731174d2ae34bc50bd5f45e731 (diff) | |
serial: zs: Fix swapped RI/DSR modem line transition counting
Fix a thinko in the status interrupt handler that has caused counters
for the RI and DSR modem line transitions to be used for the other line
each.
Fixes: 8b4a40809e53 ("zs: move to the serial subsystem")
Cc: stable <stable@kernel.org>
Signed-off-by: Maciej W. Rozycki <macro@orcam.me.uk>
Link: https://patch.msgid.link/alpine.DEB.2.21.2604101747110.29980@angie.orcam.me.uk
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/tty/serial/zs.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/tty/serial/zs.c b/drivers/tty/serial/zs.c index 72a3c0d90f40..31e12645f66b 100644 --- a/drivers/tty/serial/zs.c +++ b/drivers/tty/serial/zs.c @@ -680,9 +680,9 @@ static void zs_status_handle(struct zs_port *zport, struct zs_port *zport_a) uart_handle_dcd_change(uport, zport->mctrl & TIOCM_CAR); if (delta & TIOCM_RNG) - uport->icount.dsr++; - if (delta & TIOCM_DSR) uport->icount.rng++; + if (delta & TIOCM_DSR) + uport->icount.dsr++; if (delta) wake_up_interruptible(&uport->state->port.delta_msr_wait); |