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authorBrant Merryman <brant.merryman@silabs.com>2020-06-26 04:22:58 +0000
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2020-08-19 08:16:23 +0200
commit1f0e0ad76eaea9a9daba28ae3e2e3bc398a260f9 (patch)
treea3d8bbb67a54adfde172cc5f513cb9c4e6d87173
parent3a8d1ca7204e359b90fd325e583dfddea239fba3 (diff)
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USB: serial: cp210x: enable usb generic throttle/unthrottle
commit 4387b3dbb079d482d3c2b43a703ceed4dd27ed28 upstream. Assign the .throttle and .unthrottle functions to be generic function in the driver structure to prevent data loss that can otherwise occur if the host does not enable USB throttling. Signed-off-by: Brant Merryman <brant.merryman@silabs.com> Co-developed-by: Phu Luu <phu.luu@silabs.com> Signed-off-by: Phu Luu <phu.luu@silabs.com> Link: https://lore.kernel.org/r/57401AF3-9961-461F-95E1-F8AFC2105F5E@silabs.com [ johan: fix up tags ] Fixes: 39a66b8d22a3 ("[PATCH] USB: CP2101 Add support for flow control") Cc: stable <stable@vger.kernel.org> # 2.6.12 Signed-off-by: Johan Hovold <johan@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r--drivers/usb/serial/cp210x.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/usb/serial/cp210x.c b/drivers/usb/serial/cp210x.c
index 22c5ad23b1cd..a90801ef0055 100644
--- a/drivers/usb/serial/cp210x.c
+++ b/drivers/usb/serial/cp210x.c
@@ -272,6 +272,8 @@ static struct usb_serial_driver cp210x_device = {
.break_ctl = cp210x_break_ctl,
.set_termios = cp210x_set_termios,
.tx_empty = cp210x_tx_empty,
+ .throttle = usb_serial_generic_throttle,
+ .unthrottle = usb_serial_generic_unthrottle,
.tiocmget = cp210x_tiocmget,
.tiocmset = cp210x_tiocmset,
.attach = cp210x_attach,