Prashant Malani f53a7ad189 r8152: Set memory to all 0xFFs on failed reg reads ...

get_registers() blindly copies the memory written to by the
usb_control_msg() call even if the underlying urb failed.

This could lead to junk register values being read by the driver, since
some indirect callers of get_registers() ignore the return values. One
example is:
  ocp_read_dword() ignores the return value of generic_ocp_read(), which
  calls get_registers().

So, emulate PCI "Master Abort" behavior by setting the buffer to all
0xFFs when usb_control_msg() fails.

This patch is copied from the r8152 driver (v2.12.0) published by
Realtek (www.realtek.com).

Signed-off-by: Prashant Malani <pmalani@chromium.org>
Acked-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

2019-08-25 19:52:59 -07:00

..

aqc111.c

aqc111: cleanup mtu related logic

2019-05-16 14:22:13 -07:00

aqc111.h

net: usb: aqc111: Add support for wake on LAN by MAGIC packet

2018-11-27 15:46:07 -08:00

asix_common.c

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 13

2019-05-21 11:28:45 +02:00

asix_devices.c

net: usb: asix: init MAC address buffers

2019-07-02 15:24:48 -07:00

asix.h

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2019-05-21 11:28:45 +02:00

ax88172a.c

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2019-05-21 11:28:45 +02:00

ax88179_178a.c

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catc.c

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cdc_eem.c

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cdc_ether.c

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2019-05-21 11:28:45 +02:00

cdc_mbim.c

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2019-06-19 17:09:55 +02:00

cdc_ncm.c

net: cdc_ncm: remove set but not used variable 'ctx'

2018-10-12 09:45:36 -07:00

cdc_subset.c

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2019-05-21 11:28:45 +02:00

cdc-phonet.c

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 336

2019-06-05 17:37:07 +02:00

ch9200.c

net: ch9200: add missing USB-descriptor endianness conversions

2017-05-12 12:15:46 -04:00

cx82310_eth.c

cx82310_eth: fix a memory leak bug

2019-08-18 13:01:54 -07:00

dm9601.c

net: usbnet: support 64bit stats

2017-04-03 19:09:40 -07:00

gl620a.c

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2019-05-21 11:28:45 +02:00

hso.c

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2019-06-05 17:30:29 +02:00

huawei_cdc_ncm.c

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2019-06-19 17:09:55 +02:00

int51x1.c

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2019-05-21 11:28:45 +02:00

ipheth.c

usbnet: ipheth: fix racing condition

2019-05-21 13:10:52 -07:00

kalmia.c

net: kalmia: fix memory leaks

2019-08-18 13:03:21 -07:00

kaweth.c

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2019-05-21 11:28:46 +02:00

Kconfig

treewide: Add SPDX license identifier - Makefile/Kconfig

2019-05-21 10:50:46 +02:00

lan78xx.c

lan78xx: Fix memory leaks

2019-08-16 15:24:42 -07:00

lan78xx.h

net: lan78xx: Switch to SPDX identifier

2018-09-05 22:20:45 -07:00

lg-vl600.c

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 13

2019-05-21 11:28:45 +02:00

Makefile

net: usb: aqc111: Driver skeleton for Aquantia AQtion USB to 5GbE

2018-11-27 15:46:06 -08:00

mcs7830.c

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2019-05-21 11:28:45 +02:00

net1080.c

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2019-05-21 11:28:45 +02:00

pegasus.c

net: usb: pegasus: fix improper read if get_registers() fail

2019-08-01 18:18:27 -04:00

pegasus.h

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2019-06-19 17:09:55 +02:00

plusb.c

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2019-05-21 11:28:45 +02:00

qmi_wwan.c

net: usb: qmi_wwan: Add the BroadMobi BM818 card

2019-07-26 13:59:42 -07:00

r8152.c

r8152: Set memory to all 0xFFs on failed reg reads

2019-08-25 19:52:59 -07:00

rndis_host.c

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2019-05-21 11:28:45 +02:00

rtl8150.c

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2019-06-19 17:09:55 +02:00

sierra_net.c

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2019-05-21 11:28:45 +02:00

smsc75xx.c

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2019-05-21 11:28:45 +02:00

smsc75xx.h

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2019-05-21 11:28:45 +02:00

smsc95xx.c

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2019-05-21 11:28:45 +02:00

smsc95xx.h

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2019-05-21 11:28:45 +02:00

sr9700.c

drivers: net: Remove unnecessary semicolon

2019-03-01 23:13:49 -08:00

sr9700.h

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500

2019-06-19 17:09:55 +02:00

sr9800.c

sr9800: Check for supported Wake-on-LAN modes

2018-09-29 11:31:29 -07:00

sr9800.h

USB2NET : SR9800 : One chip USB2.0 USB2NET SR9800 Device Driver Support

2014-02-10 16:53:06 -08:00

usbnet.c

Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net

2019-05-22 08:28:16 -07:00

zaurus.c

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 13

2019-05-21 11:28:45 +02:00