On 04/30/15 21:33, mhornung.linux@xxxxxxxxx wrote:
Hello,
I am running Arch Linux on a Macbook Pro 12,1 Retina (Early 2015) and
get kernel oopses related to the brcmfmac module. The oopses occur
when I am downloading multiple files from the internet, e.g. when
running "git clone git://git.kernel.org/..." or"pacman -Syu". The problem
occured on vanilla kernels 3.19.3 and 4.0.1 and on distro kernels
3.19.3-3 and 4.0.1-1.
The access point the notebook is connected to is a FRITZ!Box 6340 Cable,
running on channel 6 in the 2.4 GHz band. I am running wpa_supplicant
and NetworkManager (nm-applet).
Please find following the output of "lspci -vvnn | grep -A 60 Network" and
the oops message while running the following command on kernel vanilla kernel 4.0.1:
"git clone git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git"
-------------------------------------------------------------------------
lspci -vvnn | grep -A 60 Network
-------------------------------------------------------------------------
03:00.0 Network controller [0280]: Broadcom Corporation BCM43602 802.11ac Wireless LAN SoC [14e4:43ba] (rev 01)
Subsystem: Apple Inc. Device [106b:0133]
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast>TAbort-<TAbort-<MAbort->SERR-<PERR- INTx-
Latency: 0, Cache Line Size: 256 bytes
Interrupt: pin A routed to IRQ 62
Region 0: Memory at c1400000 (64-bit, non-prefetchable) [size=32K]
Region 2: Memory at c1000000 (64-bit, non-prefetchable) [size=4M]
Capabilities: [48] Power Management version 3
Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA PME(D0+,D1+,D2+,D3hot+,D3cold+)
Status: D0 NoSoftRst+ PME-Enable- DSel=0 DScale=2 PME-
Capabilities: [58] MSI: Enable+ Count=1/16 Maskable- 64bit+
Address: 00000000fee00598 Data: 0000
Capabilities: [68] Vendor Specific Information: Len=44<?>
Capabilities: [ac] Express (v2) Endpoint, MSI 00
DevCap: MaxPayload 256 bytes, PhantFunc 0, Latency L0s<4us, L1 unlimited
ExtTag- AttnBtn- AttnInd- PwrInd- RBE+ FLReset-
DevCtl: Report errors: Correctable- Non-Fatal- Fatal- Unsupported-
RlxdOrd+ ExtTag- PhantFunc- AuxPwr+ NoSnoop+
MaxPayload 128 bytes, MaxReadReq 1024 bytes
DevSta: CorrErr- UncorrErr- FatalErr- UnsuppReq- AuxPwr+ TransPend-
LnkCap: Port #0, Speed 2.5GT/s, Width x1, ASPM L0s L1, Exit Latency L0s<2us, L1<32us
ClockPM+ Surprise- LLActRep- BwNot- ASPMOptComp+
LnkCtl: ASPM L0s L1 Enabled; RCB 64 bytes Disabled- CommClk+
ExtSynch- ClockPM+ AutWidDis- BWInt- AutBWInt-
LnkSta: Speed 2.5GT/s, Width x1, TrErr- Train- SlotClk+ DLActive- BWMgmt- ABWMgmt-
DevCap2: Completion Timeout: Range ABCD, TimeoutDis+, LTR+, OBFF Via WAKE#
DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis-, LTR+, OBFF Disabled
LnkCtl2: Target Link Speed: 2.5GT/s, EnterCompliance- SpeedDis-
Transmit Margin: Normal Operating Range, EnterModifiedCompliance- ComplianceSOS-
Compliance De-emphasis: -6dB
LnkSta2: Current De-emphasis Level: -3.5dB, EqualizationComplete-, EqualizationPhase1-
EqualizationPhase2-, EqualizationPhase3-, LinkEqualizationRequest-
Capabilities: [100 v1] Advanced Error Reporting
UESta: DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq- ACSViol-
UEMsk: DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq- ACSViol-
UESvrt: DLP+ SDES+ TLP- FCP+ CmpltTO- CmpltAbrt- UnxCmplt- RxOF+ MalfTLP+ ECRC- UnsupReq- ACSViol-
CESta: RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr+
CEMsk: RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr+
AERCap: First Error Pointer: 00, GenCap+ CGenEn- ChkCap+ ChkEn-
Capabilities: [13c v1] Device Serial Number 89-cd-37-ff-ff-e9-d0-a6
Capabilities: [150 v1] Power Budgeting<?>
Capabilities: [160 v1] Virtual Channel
Caps: LPEVC=0 RefClk=100ns PATEntryBits=1
Arb: Fixed- WRR32- WRR64- WRR128-
Ctrl: ArbSelect=Fixed
Status: InProgress-
VC0: Caps: PATOffset=00 MaxTimeSlots=1 RejSnoopTrans-
Arb: Fixed- WRR32- WRR64- WRR128- TWRR128- WRR256-
Ctrl: Enable+ ID=0 ArbSelect=Fixed TC/VC=ff
Status: NegoPending- InProgress-
Capabilities: [1b0 v1] Latency Tolerance Reporting
Max snoop latency: 3145728ns
Max no snoop latency: 3145728ns
Capabilities: [220 v1] #15
Capabilities: [240 v1] L1 PM Substates
L1SubCap: PCI-PM_L1.2+ PCI-PM_L1.1+ ASPM_L1.2+ ASPM_L1.1+ L1_PM_Substates+
PortCommonModeRestoreTime=0us PortTPowerOnTime=50us
Kernel driver in use: brcmfmac
-------------------------------------------------------------------------
Oops on "heavy" load (git clone linux-stable):
-------------------------------------------------------------------------
Apr 30 21:12:51 discordia kernel: brcmfmac: brcmf_msgbuf_get_pktid: Invalid packet id 273 (not in use)
Apr 30 21:12:51 discordia kernel: BUG: unable to handle kernel NULL pointer dereference at 0000000000000080
Apr 30 21:12:51 discordia kernel: IP: [<ffffffff8145b225>] skb_pull+0x5/0x50
Apr 30 21:12:51 discordia kernel: PGD 0
Apr 30 21:12:51 discordia kernel: Oops: 0000 [#1] PREEMPT SMP
Apr 30 21:12:51 discordia kernel: Modules linked in: pci_stub vboxpci(O) vboxnetflt(O) vboxnetadp(O) vboxdrv(O) snd_hda_codec_hdmi bnep mousedev hid_generic us
Apr 30 21:12:51 discordia kernel: hwmon msr ext4 crc16 mbcache jbd2 sd_mod uas usb_storage ahci libahci libata scsi_mod xhci_pci xhci_hcd usbcore usb_common [
Apr 30 21:12:51 discordia kernel: CPU: 0 PID: 1661 Comm: irq/61-brcmf_pc Tainted: G O 4.0.1-MacbookPro-ARCH #1
Apr 30 21:12:51 discordia kernel: Hardware name: Apple Inc. MacBookPro12,1/Mac-E43C1C25D4880AD6, BIOS MBP121.88Z.0167.B02.1503241251 03/24/2015
Apr 30 21:12:51 discordia kernel: task: ffff880264203cc0 ti: ffff88025ffe4000 task.ti: ffff88025ffe4000
Apr 30 21:12:51 discordia kernel: RIP: 0010:[<ffffffff8145b225>] [<ffffffff8145b225>] skb_pull+0x5/0x50
Apr 30 21:12:51 discordia kernel: RSP: 0018:ffff88025ffe7d40 EFLAGS: 00010202
Apr 30 21:12:51 discordia kernel: RAX: 0000000000000000 RBX: ffff88008a33c000 RCX: 0000000000000044
Apr 30 21:12:51 discordia kernel: RDX: 0000000000000000 RSI: 000000000000004a RDI: 0000000000000000
Apr 30 21:12:51 discordia kernel: RBP: ffff88025ffe7da8 R08: 0000000000000096 R09: 000000000000004a
Apr 30 21:12:51 discordia kernel: R10: 0000000000000000 R11: 000000000000048e R12: ffff88025ff14f00
Apr 30 21:12:51 discordia kernel: R13: 0000000000000000 R14: ffff880263b48200 R15: ffff88008a33c000
Apr 30 21:12:51 discordia kernel: FS: 0000000000000000(0000) GS:ffff88026ec00000(0000) knlGS:0000000000000000
Apr 30 21:12:51 discordia kernel: CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
Apr 30 21:12:51 discordia kernel: CR2: 0000000000000080 CR3: 000000000180b000 CR4: 00000000003407f0
Apr 30 21:12:51 discordia kernel: Stack:
Apr 30 21:12:51 discordia kernel: ffffffffa06aed74 ffff88025ffe7dc8 ffff880263b48270 ffff880263b48278
Apr 30 21:12:51 discordia kernel: 05ea88020000004a 0002ffff81014635 000000001720b2f6 ffff88026ec116c0
Apr 30 21:12:51 discordia kernel: ffff880263b48200 0000000000010000 ffff880263b4ae00 ffff880264203cc0
Apr 30 21:12:51 discordia kernel: Call Trace:
Apr 30 21:12:51 discordia kernel: [<ffffffffa06aed74>] ? brcmf_msgbuf_process_rx+0x404/0x480 [brcmfmac]
Apr 30 21:12:51 discordia kernel: [<ffffffff810cea60>] ? irq_finalize_oneshot.part.30+0xf0/0xf0
Apr 30 21:12:51 discordia kernel: [<ffffffffa06afb55>] brcmf_proto_msgbuf_rx_trigger+0x35/0xf0 [brcmfmac]
Apr 30 21:12:51 discordia kernel: [<ffffffffa06baf2a>] brcmf_pcie_isr_thread_v2+0x8a/0x130 [brcmfmac]
Apr 30 21:12:51 discordia kernel: [<ffffffff810cea80>] irq_thread_fn+0x20/0x50
Apr 30 21:12:51 discordia kernel: [<ffffffff810ceddf>] irq_thread+0x13f/0x170
Apr 30 21:12:51 discordia kernel: [<ffffffff810cebf0>] ? wake_threads_waitq+0x30/0x30
Apr 30 21:12:51 discordia kernel: [<ffffffff810ceca0>] ? irq_thread_dtor+0xb0/0xb0
Apr 30 21:12:51 discordia kernel: [<ffffffff81092a08>] kthread+0xd8/0xf0
Apr 30 21:12:51 discordia kernel: [<ffffffff81092930>] ? kthread_create_on_node+0x1c0/0x1c0
Apr 30 21:12:51 discordia kernel: [<ffffffff8156d898>] ret_from_fork+0x58/0x90
Apr 30 21:12:51 discordia kernel: [<ffffffff81092930>] ? kthread_create_on_node+0x1c0/0x1c0
Apr 30 21:12:51 discordia kernel: Code: 01 83 e2 f7 88 50 01 48 83 c4 08 5b 5d f3 c3 0f 1f 80 00 00 00 00 83 e2 f7 88 50 01 c3 66 0f 1f 84 00 00 00 00 00 0f 1f
Apr 30 21:12:51 discordia kernel: RIP [<ffffffff8145b225>] skb_pull+0x5/0x50
Apr 30 21:12:51 discordia kernel: RSP<ffff88025ffe7d40>
Apr 30 21:12:51 discordia kernel: CR2: 0000000000000080
Apr 30 21:12:51 discordia kernel: ---[ end trace b074c0f90e7c997d ]---
Apr 30 21:12:51 discordia kernel: BUG: unable to handle kernel paging request at ffffffffffffffd8
Apr 30 21:12:51 discordia kernel: IP: [<ffffffff81093090>] kthread_data+0x10/0x20
Apr 30 21:12:51 discordia kernel: PGD 180e067 PUD 1810067 PMD 0
Apr 30 21:12:51 discordia kernel: Oops: 0000 [#2] PREEMPT SMP
Apr 30 21:12:51 discordia kernel: Modules linked in: pci_stub vboxpci(O) vboxnetflt(O) vboxnetadp(O) vboxdrv(O) snd_hda_codec_hdmi bnep mousedev hid_generic us
Apr 30 21:12:51 discordia kernel: hwmon msr ext4 crc16 mbcache jbd2 sd_mod uas usb_storage ahci libahci libata scsi_mod xhci_pci xhci_hcd usbcore usb_common [
Apr 30 21:12:51 discordia kernel: CPU: 0 PID: 1661 Comm: irq/61-brcmf_pc Tainted: G D O 4.0.1-MacbookPro-ARCH #1
Apr 30 21:12:51 discordia kernel: Hardware name: Apple Inc. MacBookPro12,1/Mac-E43C1C25D4880AD6, BIOS MBP121.88Z.0167.B02.1503241251 03/24/2015
Apr 30 21:12:51 discordia kernel: task: ffff880264203cc0 ti: ffff88025ffe4000 task.ti: ffff88025ffe4000
Apr 30 21:12:51 discordia kernel: RIP: 0010:[<ffffffff81093090>] [<ffffffff81093090>] kthread_data+0x10/0x20
Apr 30 21:12:51 discordia kernel: RSP: 0018:ffff88025ffe7a28 EFLAGS: 00010202
Apr 30 21:12:51 discordia kernel: RAX: 0000000000000000 RBX: ffff880264203cc0 RCX: 000000000000c1c1
Apr 30 21:12:51 discordia kernel: RDX: 0000000000000000 RSI: 00000000000000c1 RDI: ffff880264203cc0
Apr 30 21:12:51 discordia kernel: RBP: ffff88025ffe7a28 R08: 0000000000000000 R09: 00000000000004b7
Apr 30 21:12:51 discordia kernel: R10: 0000000000000000 R11: 00000000000004b7 R12: ffffffff81a4dce0
Apr 30 21:12:51 discordia kernel: R13: ffff880264204428 R14: ffff880264203cc0 R15: 0000000000000046
Apr 30 21:12:51 discordia kernel: FS: 0000000000000000(0000) GS:ffff88026ec00000(0000) knlGS:0000000000000000
Apr 30 21:12:51 discordia kernel: CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
Apr 30 21:12:51 discordia kernel: CR2: ffffffffffffffd8 CR3: 000000000180b000 CR4: 00000000003407f0
Apr 30 21:12:51 discordia kernel: Stack:
Apr 30 21:12:51 discordia kernel: ffff88025ffe7a48 ffffffff810cec13 0000000000000000 ffffffff81a4dce0
Apr 30 21:12:51 discordia kernel: ffff88025ffe7a78 ffffffff81090f07 ffff880264203cc0 ffff88025ffe7ab0
Apr 30 21:12:51 discordia kernel: 0000000000000000 0000000000000080 ffff88025ffe7af8 ffffffff81077389
Apr 30 21:12:51 discordia kernel: Call Trace:
Apr 30 21:12:51 discordia kernel: [<ffffffff810cec13>] irq_thread_dtor+0x23/0xb0
Apr 30 21:12:51 discordia kernel: [<ffffffff81090f07>] task_work_run+0xb7/0xf0
Apr 30 21:12:51 discordia kernel: [<ffffffff81077389>] do_exit+0x2f9/0xae0
Apr 30 21:12:51 discordia kernel: [<ffffffff8101979e>] oops_end+0x9e/0xe0
Apr 30 21:12:51 discordia kernel: [<ffffffff8106241b>] no_context+0x16b/0x3a0
Apr 30 21:12:51 discordia kernel: [<ffffffff810ca59c>] ? print_time.part.8+0x6c/0x90
Apr 30 21:12:51 discordia kernel: [<ffffffff8106277d>] __bad_area_nosemaphore+0x12d/0x250
Apr 30 21:12:51 discordia kernel: [<ffffffff81147d13>] ? irq_work_queue+0x73/0xa0
Apr 30 21:12:51 discordia kernel: [<ffffffff810628b3>] bad_area_nosemaphore+0x13/0x20
Apr 30 21:12:51 discordia kernel: [<ffffffff81062d7a>] __do_page_fault+0x26a/0x4c0
Apr 30 21:12:51 discordia kernel: [<ffffffff810cc333>] ? vprintk_emit+0x303/0x520
Apr 30 21:12:51 discordia kernel: [<ffffffff81062ff2>] do_page_fault+0x22/0x30
Apr 30 21:12:51 discordia kernel: [<ffffffff8156f8e8>] page_fault+0x28/0x30
Apr 30 21:12:51 discordia kernel: [<ffffffff8145b225>] ? skb_pull+0x5/0x50
Apr 30 21:12:51 discordia kernel: [<ffffffffa06aed74>] ? brcmf_msgbuf_process_rx+0x404/0x480 [brcmfmac]
Apr 30 21:12:51 discordia kernel: [<ffffffff810cea60>] ? irq_finalize_oneshot.part.30+0xf0/0xf0
Apr 30 21:12:51 discordia kernel: [<ffffffffa06afb55>] brcmf_proto_msgbuf_rx_trigger+0x35/0xf0 [brcmfmac]
Apr 30 21:12:51 discordia kernel: [<ffffffffa06baf2a>] brcmf_pcie_isr_thread_v2+0x8a/0x130 [brcmfmac]
Apr 30 21:12:51 discordia kernel: [<ffffffff810cea80>] irq_thread_fn+0x20/0x50
Apr 30 21:12:51 discordia kernel: [<ffffffff810ceddf>] irq_thread+0x13f/0x170
Apr 30 21:12:51 discordia kernel: [<ffffffff810cebf0>] ? wake_threads_waitq+0x30/0x30
Apr 30 21:12:51 discordia kernel: [<ffffffff810ceca0>] ? irq_thread_dtor+0xb0/0xb0
Apr 30 21:12:51 discordia kernel: [<ffffffff81092a08>] kthread+0xd8/0xf0
Apr 30 21:12:51 discordia kernel: [<ffffffff81092930>] ? kthread_create_on_node+0x1c0/0x1c0
Apr 30 21:12:51 discordia kernel: [<ffffffff8156d898>] ret_from_fork+0x58/0x90
Apr 30 21:12:51 discordia kernel: [<ffffffff81092930>] ? kthread_create_on_node+0x1c0/0x1c0
Apr 30 21:12:51 discordia kernel: Code: 00 48 89 e5 5d 48 8b 40 c8 48 c1 e8 02 83 e0 01 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 8b 87 20 05 00 00 55
Apr 30 21:12:51 discordia kernel: RIP [<ffffffff81093090>] kthread_data+0x10/0x20
Apr 30 21:12:51 discordia kernel: RSP<ffff88025ffe7a28>
Apr 30 21:12:51 discordia kernel: CR2: ffffffffffffffd8
Apr 30 21:12:51 discordia kernel: ---[ end trace b074c0f90e7c997e ]---
Apr 30 21:12:51 discordia kernel: Fixing recursive fault but reboot is needed!
Apr 30 21:12:57 discordia kernel: brcmfmac: brcmf_msgbuf_query_dcmd: Timeout on response for query command
Apr 30 21:12:57 discordia kernel: brcmfmac: brcmf_cfg80211_get_station: Could not get rate (-52)
Apr 30 21:12:59 discordia kernel: brcmfmac: brcmf_msgbuf_query_dcmd: Timeout on response for query command
Apr 30 21:12:59 discordia kernel: brcmfmac: brcmf_cfg80211_get_station: Could not get rate (-52)
Apr 30 21:13:01 discordia kernel: brcmfmac: brcmf_msgbuf_query_dcmd: Timeout on response for query command
Apr 30 21:13:01 discordia kernel: brcmfmac: brcmf_cfg80211_get_station: Could not get rate (-52)
Apr 30 21:13:03 discordia kernel: brcmfmac: brcmf_msgbuf_query_dcmd: Timeout on response for query command
Apr 30 21:13:03 discordia kernel: brcmfmac: brcmf_cfg80211_get_station: Could not get rate (-52)
Apr 30 21:13:05 discordia kernel: brcmfmac: brcmf_msgbuf_query_dcmd: Timeout on response for query command
Apr 30 21:13:05 discordia kernel: brcmfmac: brcmf_cfg80211_get_station: Could not get rate (-52)
Apr 30 21:13:07 discordia kernel: brcmfmac: brcmf_msgbuf_query_dcmd: Timeout on response for query command
Apr 30 21:13:07 discordia kernel: brcmfmac: brcmf_cfg80211_get_station: Could not get rate (-52)
Apr 30 21:13:09 discordia kernel: brcmfmac: brcmf_msgbuf_query_dcmd: Timeout on response for query command
Apr 30 21:13:09 discordia kernel: brcmfmac: brcmf_cfg80211_get_station: Could not get rate (-52)
Apr 30 21:13:11 discordia kernel: brcmfmac: brcmf_msgbuf_query_dcmd: Timeout on response for query command
Apr 30 21:13:11 discordia kernel: brcmfmac: brcmf_cfg80211_get_station: Could not get rate (-52)
Apr 30 21:13:13 discordia kernel: brcmfmac: brcmf_msgbuf_query_dcmd: Timeout on response for query command
Apr 30 21:13:13 discordia kernel: brcmfmac: brcmf_cfg80211_get_station: Could not get rate (-52)
Apr 30 21:13:15 discordia kernel: brcmfmac: brcmf_msgbuf_query_dcmd: Timeout on response for query command
Apr 30 21:13:15 discordia kernel: brcmfmac: brcmf_cfg80211_get_station: Could not get rate (-52)
Apr 30 21:13:17 discordia kernel: brcmfmac: brcmf_msgbuf_query_dcmd: Timeout on response for query command
Apr 30 21:13:17 discordia kernel: brcmfmac: brcmf_cfg80211_get_station: Could not get rate (-52)
-------------------------------------------------------------------------
I would really appreciate any help you can give. Thank you very much in advance.
Hi Michael,
Can you try the attached patch file. I based it on stable version v4.0.1
kernel. Let me know if it works for you.
Regards,
Arend
With best regards
Michael Hornung
>From c2b3fb54bf2952b0a41d13cb1df592d9aa0ecf9e Mon Sep 17 00:00:00 2001
From: Arend van Spriel <arend@xxxxxxxxxxxx>
Date: Fri, 1 May 2015 09:59:35 +0200
Subject: [PATCH] brcmfmac: avoid null pointer access when
brcmf_msgbuf_get_pktid() fails
The function brcmf_msgbuf_get_pktid() may return a NULL pointer so
the callers should check the return pointer before accessing it.
Signed-off-by: Arend van Spriel <arend@xxxxxxxxxxxx>
---
drivers/net/wireless/brcm80211/brcmfmac/msgbuf.c | 12 +++++-------
1 file changed, 5 insertions(+), 7 deletions(-)
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/msgbuf.c b/drivers/net/wireless/brcm80211/brcmfmac/msgbuf.c
index 6262612..7a3231d 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/msgbuf.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/msgbuf.c
@@ -512,11 +512,9 @@ static int brcmf_msgbuf_query_dcmd(struct brcmf_pub *drvr, int ifidx,
msgbuf->rx_pktids,
msgbuf->ioctl_resp_pktid);
if (msgbuf->ioctl_resp_ret_len != 0) {
- if (!skb) {
- brcmf_err("Invalid packet id idx recv'd %d\n",
- msgbuf->ioctl_resp_pktid);
+ if (!skb)
return -EBADF;
- }
+
memcpy(buf, skb->data, (len < msgbuf->ioctl_resp_ret_len) ?
len : msgbuf->ioctl_resp_ret_len);
}
@@ -875,10 +873,8 @@ brcmf_msgbuf_process_txstatus(struct brcmf_msgbuf *msgbuf, void *buf)
flowid -= BRCMF_NROF_H2D_COMMON_MSGRINGS;
skb = brcmf_msgbuf_get_pktid(msgbuf->drvr->bus_if->dev,
msgbuf->tx_pktids, idx);
- if (!skb) {
- brcmf_err("Invalid packet id idx recv'd %d\n", idx);
+ if (!skb)
return;
- }
set_bit(flowid, msgbuf->txstatus_done_map);
commonring = msgbuf->flowrings[flowid];
@@ -1157,6 +1153,8 @@ brcmf_msgbuf_process_rx_complete(struct brcmf_msgbuf *msgbuf, void *buf)
skb = brcmf_msgbuf_get_pktid(msgbuf->drvr->bus_if->dev,
msgbuf->rx_pktids, idx);
+ if (!skb)
+ return;
if (data_offset)
skb_pull(skb, data_offset);
--
1.9.1
