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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2020-01-18 12:02:33 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2020-01-18 12:02:33 -0800 |
| commit | c5fd2c5b8bcd274718c3370b39913f68587fb9cc (patch) | |
| tree | b792b2d165d83bdea8a01d1edaad5253b44a72ff /drivers/usb/serial/ch341.c | |
| parent | 25e73aadf297d78cf528841795cd37bad8320642 (diff) | |
| parent | 453495d4e791664e42be2254a6a8acb84b991417 (diff) | |
Merge tag 'usb-5.5-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB driver fixes from Greg KH:
"Here are some small USB driver and core fixes for 5.5-rc7
There's one fix for hub wakeup issues and a number of small usb-serial
driver fixes and device id updates.
The hub fix has been in linux-next for a while with no reported
issues, and the usb-serial ones have all passed 0-day with no
problems"
* tag 'usb-5.5-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
USB: serial: quatech2: handle unbound ports
USB: serial: keyspan: handle unbound ports
USB: serial: io_edgeport: add missing active-port sanity check
USB: serial: io_edgeport: handle unbound ports on URB completion
USB: serial: ch341: handle unbound port at reset_resume
USB: serial: suppress driver bind attributes
USB: serial: option: add support for Quectel RM500Q in QDL mode
usb: core: hub: Improved device recognition on remote wakeup
USB: serial: opticon: fix control-message timeouts
USB: serial: option: Add support for Quectel RM500Q
USB: serial: simple: Add Motorola Solutions TETRA MTP3xxx and MTP85xx
Diffstat (limited to 'drivers/usb/serial/ch341.c')
| -rw-r--r-- | drivers/usb/serial/ch341.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/usb/serial/ch341.c b/drivers/usb/serial/ch341.c index df582fe855f0..d3f420f3a083 100644 --- a/drivers/usb/serial/ch341.c +++ b/drivers/usb/serial/ch341.c @@ -642,9 +642,13 @@ static int ch341_tiocmget(struct tty_struct *tty) static int ch341_reset_resume(struct usb_serial *serial) { struct usb_serial_port *port = serial->port[0]; - struct ch341_private *priv = usb_get_serial_port_data(port); + struct ch341_private *priv; int ret; + priv = usb_get_serial_port_data(port); + if (!priv) + return 0; + /* reconfigure ch341 serial port after bus-reset */ ch341_configure(serial->dev, priv); |