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USB fixes for 4.20-rc6

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Here are some small USB fixes for 4.20-rc6
 
 The "largest" here are some xhci fixes for reported issues.  Also here
 is a USB core fix, some quirk additions, and a usb-serial fix which
 required the export of one of the tty layer's functions to prevent code
 duplication.  The tty maintainer agreed with this change.
 
 All of these have been in linux-next with no reported issues.
 
 Signed-off-by: Greg Kroah-Hartman <[email protected]>
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Merge tag 'usb-4.20-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

Pull USB fixes from Greg KH:
 "Here are some small USB fixes for 4.20-rc6

  The "largest" here are some xhci fixes for reported issues. Also here
  is a USB core fix, some quirk additions, and a usb-serial fix which
  required the export of one of the tty layer's functions to prevent
  code duplication. The tty maintainer agreed with this change.

  All of these have been in linux-next with no reported issues"

* tag 'usb-4.20-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
  xhci: Prevent U1/U2 link pm states if exit latency is too long
  xhci: workaround CSS timeout on AMD SNPS 3.0 xHC
  USB: check usb_get_extra_descriptor for proper size
  USB: serial: console: fix reported terminal settings
  usb: quirk: add no-LPM quirk on SanDisk Ultra Flair device
  USB: Fix invalid-free bug in port_over_current_notify()
  usb: appledisplay: Add 27" Apple Cinema Display
This commit is contained in:
Linus Torvalds 2018-12-09 10:18:24 -08:00
commit 50a5528a4b
12 changed files with 70 additions and 15 deletions
Download patch file Download diff file Expand all files Collapse all files

11
drivers/tty/tty_io.c
View file

@ -1373,7 +1373,13 @@ err_release_lock:
return ERR_PTR(retval);
}
static void tty_free_termios(struct tty_struct *tty)
/**
* tty_save_termios() - save tty termios data in driver table
* @tty: tty whose termios data to save
*
* Locking: Caller guarantees serialisation with tty_init_termios().
*/
void tty_save_termios(struct tty_struct *tty)
{
struct ktermios *tp;
int idx = tty->index;
@ -1392,6 +1398,7 @@ static void tty_free_termios(struct tty_struct *tty)
}
*tp = tty->termios;
}
EXPORT_SYMBOL_GPL(tty_save_termios);
/**
* tty_flush_works - flush all works of a tty/pty pair
@ -1491,7 +1498,7 @@ static void release_tty(struct tty_struct *tty, int idx)
WARN_ON(!mutex_is_locked(&tty_mutex));
if (tty->ops->shutdown)
tty->ops->shutdown(tty);
tty_free_termios(tty);
tty_save_termios(tty);
tty_driver_remove_tty(tty->driver, tty);
tty->port->itty = NULL;
if (tty->link)