AuxXxilium/linux_dsm_epyc7002
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linux_dsm_epyc7002/drivers/net/usb
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Hayes Wang 8e484ebb1e r8152: check the pointer rtl_fw->fw before using it 
Fix the pointer rtl_fw->fw would be used before checking in
rtl8152_apply_firmware() that causes the following kernel oops.

Unable to handle kernel NULL pointer dereference at virtual address 00000002
pgd = (ptrval)
[00000002] *pgd=00000000
Internal error: Oops: 5 [#1] PREEMPT SMP ARM
Modules linked in:
CPU: 0 PID: 131 Comm: kworker/0:2 Not tainted
5.4.0-rc1-00539-g9370f2d05a2a #6788
Hardware name: SAMSUNG EXYNOS (Flattened Device Tree)
Workqueue: events_long rtl_hw_phy_work_func_t
PC is at rtl8152_apply_firmware+0x14/0x464
LR is at r8153_hw_phy_cfg+0x24/0x17c
pc : [<c064f4e4>]    lr : [<c064fa18>]    psr: a0000013
sp : e75c9e60  ip : 60000013  fp : c11b7614
r10: e883b91c  r9 : 00000000  r8 : fffffffe
r7 : e883b640  r6 : fffffffe  r5 : fffffffe  r4 : e883b640
r3 : 736cfe7c  r2 : 736cfe7c  r1 : 000052f8  r0 : e883b640
Flags: NzCv  IRQs on  FIQs on  Mode SVC_32  ISA ARM  Segment none
Control: 10c5387d  Table: 6640006a  DAC: 00000051
Process kworker/0:2 (pid: 131, stack limit = 0x(ptrval))
Stack: (0xe75c9e60 to 0xe75ca000)
...
[<c064f4e4>] (rtl8152_apply_firmware) from [<c064fa18>]
(r8153_hw_phy_cfg+0x24/0x17c)
[<c064fa18>] (r8153_hw_phy_cfg) from [<c064e784>]
(rtl_hw_phy_work_func_t+0x220/0x3e4)
[<c064e784>] (rtl_hw_phy_work_func_t) from [<c0148a74>]
(process_one_work+0x22c/0x7c8)
[<c0148a74>] (process_one_work) from [<c0149054>] (worker_thread+0x44/0x520)
[<c0149054>] (worker_thread) from [<c0150548>] (kthread+0x130/0x164)
[<c0150548>] (kthread) from [<c01010b4>] (ret_from_fork+0x14/0x20)
Exception stack(0xe75c9fb0 to 0xe75c9ff8)
...

Fixes: 9370f2d05a ("r8152: support request_firmware for RTL8153")
Reported-by: Marek Szyprowski <m.szyprowski@samsung.com>
Tested-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-25 17:03:19 -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 net: usb: Merge cpu_to_le32s + memcpy to put_unaligned_le32 2019-07-22 20:44:14 -07:00
asix_devices.c net: usb: asix: init MAC address buffers 2019-07-02 15:24:48 -07:00
asix.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 13 2019-05-21 11:28:45 +02:00
ax88172a.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 13 2019-05-21 11:28:45 +02:00
ax88179_178a.c net: usb: ax88179_178a: write mac to hardware in get_mac_addr 2019-10-11 20:50:37 -07:00
catc.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 13 2019-05-21 11:28:45 +02:00
cdc_eem.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 13 2019-05-21 11:28:45 +02:00
cdc_ether.c cdc_ether: fix rndis support for Mediatek based smartphones 2019-09-13 22:08:13 +02:00
cdc_mbim.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
cdc_ncm.c cdc_ncm: fix divide-by-zero caused by invalid wMaxPacketSize 2019-09-21 12:06:49 -07:00
cdc_subset.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 13 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
cx82310_eth.c cx82310_eth: fix a memory leak bug 2019-08-18 13:01:54 -07:00
dm9601.c
gl620a.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 13 2019-05-21 11:28:45 +02:00
hso.c usb: hso: obey DMA rules in tiocmget 2019-10-17 15:05:10 -04:00
huawei_cdc_ncm.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
int51x1.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 13 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 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 17 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 net: lan78xx: remove set but not used variable 'event' 2019-10-23 21:37:48 -07:00
lan78xx.h
lg-vl600.c net: usb: Delete unnecessary checks before the macro call “dev_kfree_skb” 2019-08-22 16:22:03 -07:00
Makefile net: usb: aqc111: Driver skeleton for Aquantia AQtion USB to 5GbE 2018-11-27 15:46:06 -08:00
mcs7830.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 13 2019-05-21 11:28:45 +02:00
net1080.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 13 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 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
plusb.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 13 2019-05-21 11:28:45 +02:00
qmi_wwan.c net: usb: qmi_wwan: add Telit 0x1050 composition 2019-10-09 19:59:19 -07:00
r8152.c r8152: check the pointer rtl_fw->fw before using it 2019-10-25 17:03:19 -07:00
rndis_host.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 13 2019-05-21 11:28:45 +02:00
rtl8150.c net: usb: Delete unnecessary checks before the macro call “dev_kfree_skb” 2019-08-22 16:22:03 -07:00
sierra_net.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 13 2019-05-21 11:28:45 +02:00
smsc75xx.c net: usb: Merge cpu_to_le32s + memcpy to put_unaligned_le32 2019-07-22 20:44:14 -07:00
smsc75xx.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 13 2019-05-21 11:28:45 +02:00
smsc95xx.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 13 2019-05-21 11:28:45 +02:00
smsc95xx.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 13 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 net: usb: sr9800: fix uninitialized local variable 2019-10-15 21:02:12 -07:00
sr9800.h
usbnet.c usbnet: ignore endpoints with invalid wMaxPacketSize 2019-09-21 12:06:55 -07:00
zaurus.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 13 2019-05-21 11:28:45 +02:00