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authorGreg Kroah-Hartman <gregkh@linuxfoundation.org>2025-12-12 20:37:22 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2025-12-12 20:37:22 +0300
commitafab69dcd2367d658853a3520fb06d356ccabb7f (patch)
treeeadb66b0176308a9e57480f0675d81ef05b5d776 /drivers/usb/serial/belkin_sa.c
parent9319aefb0f8805af379d375403b5ba48a0d3ef1b (diff)
parent53d3c6ddbb9749ebc06956a13ed6eead31402a7d (diff)
downloadlinux-rolling-lts.tar.xz
Merge v6.12.62linux-rolling-lts
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/serial/belkin_sa.c')
-rw-r--r--drivers/usb/serial/belkin_sa.c28
1 files changed, 17 insertions, 11 deletions
diff --git a/drivers/usb/serial/belkin_sa.c b/drivers/usb/serial/belkin_sa.c
index 44f5b58beec9..aa6b4c4ad5ec 100644
--- a/drivers/usb/serial/belkin_sa.c
+++ b/drivers/usb/serial/belkin_sa.c
@@ -435,7 +435,7 @@ static int belkin_sa_tiocmset(struct tty_struct *tty,
struct belkin_sa_private *priv = usb_get_serial_port_data(port);
unsigned long control_state;
unsigned long flags;
- int retval;
+ int retval = 0;
int rts = 0;
int dtr = 0;
@@ -452,26 +452,32 @@ static int belkin_sa_tiocmset(struct tty_struct *tty,
}
if (clear & TIOCM_RTS) {
control_state &= ~TIOCM_RTS;
- rts = 0;
+ rts = 1;
}
if (clear & TIOCM_DTR) {
control_state &= ~TIOCM_DTR;
- dtr = 0;
+ dtr = 1;
}
priv->control_state = control_state;
spin_unlock_irqrestore(&priv->lock, flags);
- retval = BSA_USB_CMD(BELKIN_SA_SET_RTS_REQUEST, rts);
- if (retval < 0) {
- dev_err(&port->dev, "Set RTS error %d\n", retval);
- goto exit;
+ if (rts) {
+ retval = BSA_USB_CMD(BELKIN_SA_SET_RTS_REQUEST,
+ !!(control_state & TIOCM_RTS));
+ if (retval < 0) {
+ dev_err(&port->dev, "Set RTS error %d\n", retval);
+ goto exit;
+ }
}
- retval = BSA_USB_CMD(BELKIN_SA_SET_DTR_REQUEST, dtr);
- if (retval < 0) {
- dev_err(&port->dev, "Set DTR error %d\n", retval);
- goto exit;
+ if (dtr) {
+ retval = BSA_USB_CMD(BELKIN_SA_SET_DTR_REQUEST,
+ !!(control_state & TIOCM_DTR));
+ if (retval < 0) {
+ dev_err(&port->dev, "Set DTR error %d\n", retval);
+ goto exit;
+ }
}
exit:
return retval;