linux-stable.git/drivers/usb/serial, branch v4.4.185

USB: serial: option: add Telit 0x1260 and 0x1261 compositions

2019-06-22T06:18:24+00:00

commit f3dfd4072c3ee6e287f501a18b5718b185d6a940 upstream.

Added support for Telit LE910Cx 0x1260 and 0x1261 compositions.

Signed-off-by: Daniele Palmas 
Cc: stable 
Signed-off-by: Johan Hovold 
Signed-off-by: Greg Kroah-Hartman

USB: serial: option: add support for Simcom SIM7500/SIM7600 RNDIS mode

2019-06-22T06:18:24+00:00

commit 5417a7e482962952e622eabd60cd3600dd65dedf upstream.

Added IDs for Simcom SIM7500/SIM7600 series cellular module in RNDIS
mode. Reserved the interface for ADB.

T:  Bus=03 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#=  7 Spd=480 MxCh= 0
D:  Ver= 2.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs=  1
P:  Vendor=1e0e ProdID=9011 Rev=03.18
S:  Manufacturer=SimTech, Incorporated
S:  Product=SimTech, Incorporated
S:  SerialNumber=0123456789ABCDEF
C:  #Ifs= 8 Cfg#= 1 Atr=a0 MxPwr=500mA
I:  If#=0x0 Alt= 0 #EPs= 1 Cls=02(commc) Sub=02 Prot=ff Driver=rndis_host
I:  If#=0x1 Alt= 0 #EPs= 2 Cls=0a(data ) Sub=00 Prot=00 Driver=rndis_host
I:  If#=0x2 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=option
I:  If#=0x3 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=option
I:  If#=0x4 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=option
I:  If#=0x5 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=option
I:  If#=0x6 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=option
I:  If#=0x7 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=42 Prot=01 Driver=(none)

Signed-off-by: Jörgen Storvist 
Cc: stable 
Signed-off-by: Johan Hovold 
Signed-off-by: Greg Kroah-Hartman

USB: serial: pl2303: add Allied Telesis VT-Kit3

2019-06-22T06:18:24+00:00

commit c5f81656a18b271976a86724dadd8344e54de74e upstream.

This is adds the vendor and device id for the AT-VT-Kit3 which is a
pl2303-based device.

Signed-off-by: Chris Packham 
Cc: stable 
Signed-off-by: Johan Hovold 
Signed-off-by: Greg Kroah-Hartman

USB: serial: fix unthrottle races

2019-05-16T17:45:16+00:00

[ Upstream commit 3f5edd58d040bfa4b74fb89bc02f0bc6b9cd06ab ]

Fix two long-standing bugs which could potentially lead to memory
corruption or leave the port throttled until it is reopened (on weakly
ordered systems), respectively, when read-URB completion races with
unthrottle().

First, the URB must not be marked as free before processing is complete
to prevent it from being submitted by unthrottle() on another CPU.

	CPU 1				CPU 2
	================		================
	complete()			unthrottle()
	  process_urb();
	  smp_mb__before_atomic();
	  set_bit(i, free);		  if (test_and_clear_bit(i, free))
	  					  submit_urb();

Second, the URB must be marked as free before checking the throttled
flag to prevent unthrottle() on another CPU from failing to observe that
the URB needs to be submitted if complete() sees that the throttled flag
is set.

	CPU 1				CPU 2
	================		================
	complete()			unthrottle()
	  set_bit(i, free);		  throttled = 0;
	  smp_mb__after_atomic();	  smp_mb();
	  if (throttled)		  if (test_and_clear_bit(i, free))
	  	  return;			  submit_urb();

Note that test_and_clear_bit() only implies barriers when the test is
successful. To handle the case where the URB is still in use an explicit
barrier needs to be added to unthrottle() for the second race condition.

Fixes: d83b405383c9 ("USB: serial: add support for multiple read urbs")
Signed-off-by: Johan Hovold 
Signed-off-by: Sasha Levin

USB: serial: use variable for status

2019-05-16T17:45:16+00:00

[ Upstream commit 3161da970d38cd6ed2ba8cadec93874d1d06e11e ]

This patch turns status in a variable read once from the URB.
The long term plan is to deliver status to the callback.
In addition it makes the code a bit more elegant.

Signed-off-by: Oliver Neukum 
Signed-off-by: Johan Hovold 
Signed-off-by: Sasha Levin

USB: serial: option: add Olicard 600

2019-04-03T04:23:28+00:00

commit 84f3b43f7378b98b7e3096d5499de75183d4347c upstream.

This is a Qualcomm based device with a QMI function on interface 4.
It is mode switched from 2020:2030 using a standard eject message.

T:  Bus=01 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#=  6 Spd=480  MxCh= 0
D:  Ver= 2.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs=  1
P:  Vendor=2020 ProdID=2031 Rev= 2.32
S:  Manufacturer=Mobile Connect
S:  Product=Mobile Connect
S:  SerialNumber=0123456789ABCDEF
C:* #Ifs= 6 Cfg#= 1 Atr=80 MxPwr=500mA
I:* If#= 0 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=(none)
E:  Ad=81(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E:  Ad=01(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
I:* If#= 1 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=(none)
E:  Ad=83(I) Atr=03(Int.) MxPS=  10 Ivl=32ms
E:  Ad=82(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E:  Ad=02(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
I:* If#= 2 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=(none)
E:  Ad=85(I) Atr=03(Int.) MxPS=  10 Ivl=32ms
E:  Ad=84(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E:  Ad=03(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
I:* If#= 3 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=(none)
E:  Ad=87(I) Atr=03(Int.) MxPS=  10 Ivl=32ms
E:  Ad=86(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E:  Ad=04(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
I:* If#= 4 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=ff Driver=(none)
E:  Ad=89(I) Atr=03(Int.) MxPS=   8 Ivl=32ms
E:  Ad=88(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E:  Ad=05(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
I:* If#= 5 Alt= 0 #EPs= 2 Cls=08(stor.) Sub=06 Prot=50 Driver=(none)
E:  Ad=8a(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E:  Ad=06(O) Atr=02(Bulk) MxPS= 512 Ivl=125us

Cc: stable@vger.kernel.org
Signed-off-by: Bjørn Mork 
[ johan: use tabs to align comments in adjacent lines ]
Signed-off-by: Johan Hovold 
Signed-off-by: Greg Kroah-Hartman

USB: serial: option: set driver_info for SIM5218 and compatibles

2019-04-03T04:23:28+00:00

commit f8df5c2c3e2df5ffaf9fb5503da93d477a8c7db4 upstream.

The SIMCom SIM5218 and compatible devices have 5 USB interfaces, only 4
of which are serial ports.  The fifth is a network interface supported
by the qmi-wwan driver.  Furthermore, the serial ports do not support
modem control signals.  Add driver_info flags to reflect this.

Signed-off-by: Mans Rullgard 
Fixes: ec0cd94d881c ("usb: option: add SIMCom SIM5218")
Cc: stable 	# 3.2
Signed-off-by: Johan Hovold 
Signed-off-by: Greg Kroah-Hartman

USB: serial: mos7720: fix mos_parport refcount imbalance on error path

2019-04-03T04:23:27+00:00

commit 2908b076f5198d231de62713cb2b633a3a4b95ac upstream.

The write_parport_reg_nonblock() helper takes a reference to the struct
mos_parport, but failed to release it in a couple of error paths after
allocation failures, leading to a memory leak.

Johan said that move the kref_get() and mos_parport assignment to the
end of urbtrack initialisation is a better way, so move it. and
mos_parport do not used until urbtrack initialisation.

Signed-off-by: Lin Yi 
Fixes: b69578df7e98 ("USB: usbserial: mos7720: add support for parallel port on moschip 7715")
Cc: stable      # 2.6.35
Signed-off-by: Johan Hovold 
Signed-off-by: Greg Kroah-Hartman

USB: serial: ftdi_sio: add additional NovaTech products

2019-04-03T04:23:27+00:00

commit 422c2537ba9d42320f8ab6573940269f87095320 upstream.

Add PIDs for the NovaTech OrionLX+ and Orion I/O so they can be
automatically detected.

Signed-off-by: George McCollister 
Cc: stable 
Signed-off-by: Johan Hovold 
Signed-off-by: Greg Kroah-Hartman

USB: serial: cp210x: add new device id

2019-04-03T04:23:27+00:00

commit a595ecdd5f60b2d93863cebb07eec7f935839b54 upstream.

Lorenz Messtechnik has a device that is controlled by the cp210x driver,
so add the device id to the driver.  The device id was provided by
Silicon-Labs for the devices from this vendor.

Reported-by: Uli 
Signed-off-by: Greg Kroah-Hartman 
Cc: stable 
Signed-off-by: Johan Hovold 
Signed-off-by: Greg Kroah-Hartman