From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: linux-kernel@vger.kernel.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
stable@vger.kernel.org, Ben Hutchings <ben@decadent.org.uk>,
Nehal Shah <Nehal-bakulchandra.Shah@amd.com>,
Sandeep Singh <Sandeep.Singh@amd.com>,
Shyam Sundar S K <Shyam-sundar.S-k@amd.com>
Subject: [PATCH 4.4 04/31] usb:xhci:Fix regression when ATI chipsets detected
Date: Tue, 12 Sep 2017 09:55:59 -0700 [thread overview]
Message-ID: <20170912165247.660597115@linuxfoundation.org> (raw)
In-Reply-To: <20170912165247.436880944@linuxfoundation.org>
4.4-stable review patch. If anyone has any objections, please let me know.
------------------
From: Sandeep Singh <sandeep.singh@amd.com>
commit e6b422b88b46353cf596e0db6dc0e39d50d90d6e upstream.
The following commit cause a regression on ATI chipsets.
'commit e788787ef4f9 ("usb:xhci:Add quirk for Certain
failing HP keyboard on reset after resume")'
This causes pinfo->smbus_dev to be wrongly set to NULL on
systems with the ATI chipset that this function checks for first.
Added conditional check for AMD chipsets to avoid the overwriting
pinfo->smbus_dev.
Reported-by: Ben Hutchings <ben@decadent.org.uk>
Fixes: e788787ef4f9 ("usb:xhci:Add quirk for Certain
failing HP keyboard on reset after resume")
cc: Nehal Shah <Nehal-bakulchandra.Shah@amd.com>
Signed-off-by: Sandeep Singh <Sandeep.Singh@amd.com>
Signed-off-by: Shyam Sundar S K <Shyam-sundar.S-k@amd.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/usb/host/pci-quirks.c | 35 ++++++++++++++++++-----------------
1 file changed, 18 insertions(+), 17 deletions(-)
--- a/drivers/usb/host/pci-quirks.c
+++ b/drivers/usb/host/pci-quirks.c
@@ -133,29 +133,30 @@ static int amd_chipset_sb_type_init(stru
pinfo->sb_type.gen = AMD_CHIPSET_SB700;
else if (rev >= 0x40 && rev <= 0x4f)
pinfo->sb_type.gen = AMD_CHIPSET_SB800;
- }
- pinfo->smbus_dev = pci_get_device(PCI_VENDOR_ID_AMD,
- 0x145c, NULL);
- if (pinfo->smbus_dev) {
- pinfo->sb_type.gen = AMD_CHIPSET_TAISHAN;
} else {
pinfo->smbus_dev = pci_get_device(PCI_VENDOR_ID_AMD,
PCI_DEVICE_ID_AMD_HUDSON2_SMBUS, NULL);
- if (!pinfo->smbus_dev) {
- pinfo->sb_type.gen = NOT_AMD_CHIPSET;
- return 0;
+ if (pinfo->smbus_dev) {
+ rev = pinfo->smbus_dev->revision;
+ if (rev >= 0x11 && rev <= 0x14)
+ pinfo->sb_type.gen = AMD_CHIPSET_HUDSON2;
+ else if (rev >= 0x15 && rev <= 0x18)
+ pinfo->sb_type.gen = AMD_CHIPSET_BOLTON;
+ else if (rev >= 0x39 && rev <= 0x3a)
+ pinfo->sb_type.gen = AMD_CHIPSET_YANGTZE;
+ } else {
+ pinfo->smbus_dev = pci_get_device(PCI_VENDOR_ID_AMD,
+ 0x145c, NULL);
+ if (pinfo->smbus_dev) {
+ rev = pinfo->smbus_dev->revision;
+ pinfo->sb_type.gen = AMD_CHIPSET_TAISHAN;
+ } else {
+ pinfo->sb_type.gen = NOT_AMD_CHIPSET;
+ return 0;
+ }
}
-
- rev = pinfo->smbus_dev->revision;
- if (rev >= 0x11 && rev <= 0x14)
- pinfo->sb_type.gen = AMD_CHIPSET_HUDSON2;
- else if (rev >= 0x15 && rev <= 0x18)
- pinfo->sb_type.gen = AMD_CHIPSET_BOLTON;
- else if (rev >= 0x39 && rev <= 0x3a)
- pinfo->sb_type.gen = AMD_CHIPSET_YANGTZE;
}
-
pinfo->sb_type.rev = rev;
return 1;
}
next prev parent reply other threads:[~2017-09-12 16:57 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-09-12 16:55 [PATCH 4.4 00/31] 4.4.88-stable review Greg Kroah-Hartman
2017-09-12 16:55 ` [PATCH 4.4 01/31] usb: quirks: add delay init quirk for Corsair Strafe RGB keyboard Greg Kroah-Hartman
2017-09-12 16:55 ` [PATCH 4.4 02/31] USB: serial: option: add support for D-Link DWM-157 C1 Greg Kroah-Hartman
2017-09-12 16:55 ` [PATCH 4.4 03/31] usb: Add device quirk for Logitech HD Pro Webcam C920-C Greg Kroah-Hartman
2017-09-12 16:55 ` Greg Kroah-Hartman [this message]
2017-09-12 16:56 ` [PATCH 4.4 05/31] USB: core: Avoid race of async_completed() w/ usbdev_release() Greg Kroah-Hartman
2017-09-12 16:56 ` [PATCH 4.4 06/31] staging/rts5208: fix incorrect shift to extract upper nybble Greg Kroah-Hartman
2017-09-12 16:56 ` [PATCH 4.4 07/31] driver core: bus: Fix a potential double free Greg Kroah-Hartman
2017-09-12 16:56 ` [PATCH 4.4 08/31] intel_th: pci: Add Cannon Lake PCH-H support Greg Kroah-Hartman
2017-09-12 16:56 ` [PATCH 4.4 09/31] intel_th: pci: Add Cannon Lake PCH-LP support Greg Kroah-Hartman
2017-09-12 16:56 ` [PATCH 4.4 10/31] ath10k: fix memory leak in rx ring buffer allocation Greg Kroah-Hartman
2017-09-12 16:56 ` [PATCH 4.4 11/31] Input: trackpoint - assume 3 buttons when buttons detection fails Greg Kroah-Hartman
2017-09-12 16:56 ` [PATCH 4.4 12/31] rtlwifi: rtl_pci_probe: Fix fail path of _rtl_pci_find_adapter Greg Kroah-Hartman
2017-09-12 16:56 ` [PATCH 4.4 13/31] Bluetooth: Add support of 13d3:3494 RTL8723BE device Greg Kroah-Hartman
2017-09-12 16:56 ` [PATCH 4.4 15/31] mwifiex: correct channel stat buffer overflows Greg Kroah-Hartman
2017-09-12 16:56 ` [PATCH 4.4 16/31] drm/nouveau/pci/msi: disable MSI on big-endian platforms by default Greg Kroah-Hartman
2017-09-12 16:56 ` [PATCH 4.4 17/31] workqueue: Fix flag collision Greg Kroah-Hartman
2017-09-12 16:56 ` [PATCH 4.4 18/31] cs5536: add support for IDE controller variant Greg Kroah-Hartman
2017-09-12 16:56 ` [PATCH 4.4 19/31] scsi: sg: protect against races between mmap() and SG_SET_RESERVED_SIZE Greg Kroah-Hartman
2017-09-12 16:56 ` [PATCH 4.4 20/31] scsi: sg: recheck MMAP_IO request length with lock held Greg Kroah-Hartman
2017-09-12 16:56 ` [PATCH 4.4 21/31] drm: adv7511: really enable interrupts for EDID detection Greg Kroah-Hartman
2017-09-12 16:56 ` [PATCH 4.4 22/31] drm/bridge: adv7511: Fix mutex deadlock when interrupts are disabled Greg Kroah-Hartman
2017-09-12 16:56 ` [PATCH 4.4 23/31] drm/bridge: adv7511: Use work_struct to defer hotplug handing to out of irq context Greg Kroah-Hartman
2017-10-13 13:53 ` Ben Hutchings
2017-09-12 16:56 ` [PATCH 4.4 24/31] drm/bridge: adv7511: Switch to using drm_kms_helper_hotplug_event() Greg Kroah-Hartman
2017-09-12 16:56 ` [PATCH 4.4 25/31] drm/bridge: adv7511: Re-write the i2c address before EDID probing Greg Kroah-Hartman
2017-09-12 16:56 ` [PATCH 4.4 26/31] btrfs: resume qgroup rescan on rw remount Greg Kroah-Hartman
2017-09-12 16:56 ` [PATCH 4.4 28/31] ALSA: msnd: Optimize / harden DSP and MIDI loops Greg Kroah-Hartman
2017-09-12 16:56 ` [PATCH 4.4 29/31] Bluetooth: Properly check L2CAP config option output buffer length Greg Kroah-Hartman
2017-09-12 16:56 ` [PATCH 4.4 30/31] ARM: 8692/1: mm: abort uaccess retries upon fatal signal Greg Kroah-Hartman
2017-09-12 16:56 ` [PATCH 4.4 31/31] NFS: Fix 2 use after free issues in the I/O code Greg Kroah-Hartman
2017-09-13 0:11 ` [PATCH 4.4 00/31] 4.4.88-stable review Shuah Khan
[not found] ` <59b8666e.cd5e1c0a.73fbf.2682@mx.google.com>
2017-09-13 1:03 ` Greg Kroah-Hartman
2017-09-13 21:57 ` Kevin Hilman
2017-09-19 5:50 ` Stephen Boyd
2017-09-19 11:14 ` Mark Brown
2017-09-13 14:32 ` Guenter Roeck
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