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Add patch to fix issue with ULPI on QCom devices

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This commit is contained in:
Peter Robinson 2017-11-12 17:53:42 +00:00
parent 8348394cdc
commit ffd0c6f9f3
2 changed files with 50 additions and 10 deletions
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48
USB-ulpi-fix-bus-node-lookup.patch Normal file
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@ -0,0 +1,48 @@
From patchwork Sat Nov 11 15:31:18 2017
Content-Type: text/plain; charset="utf-8"
MIME-Version: 1.0
Content-Transfer-Encoding: 7bit
Subject: USB: ulpi: fix bus-node lookup
From: Johan Hovold <johan@kernel.org>
X-Patchwork-Id: 10054387
Message-Id: <20171111153118.16038-1-johan@kernel.org>
To: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-arm-msm@vger.kernel.org, Rob Clark <robdclark@gmail.com>,
Peter Robinson <pbrobinson@gmail.com>, Johan Hovold <johan@kernel.org>,
stable <stable@vger.kernel.org>
Date: Sat, 11 Nov 2017 16:31:18 +0100
Fix bus-node lookup during registration, which ended up searching the whole
device tree depth-first starting at the parent (or grand parent) rather
than just matching on its children.
To make things worse, the parent (or grand-parent) node could end being
prematurely freed as well.
Fixes: ef6a7bcfb01c ("usb: ulpi: Support device discovery via DT")
Reported-by: Peter Robinson <pbrobinson@gmail.com>
Reported-by: Stephen Boyd <sboyd@codeaurora.org>
Cc: stable <stable@vger.kernel.org> # 4.10
Signed-off-by: Johan Hovold <johan@kernel.org>
---
drivers/usb/common/ulpi.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/usb/common/ulpi.c b/drivers/usb/common/ulpi.c
index 8b351444cc40..9a2ab6751a23 100644
--- a/drivers/usb/common/ulpi.c
+++ b/drivers/usb/common/ulpi.c
@@ -180,9 +180,9 @@ static int ulpi_of_register(struct ulpi *ulpi)
/* Find a ulpi bus underneath the parent or the grandparent */
parent = ulpi->dev.parent;
if (parent->of_node)
- np = of_find_node_by_name(parent->of_node, "ulpi");
+ np = of_get_child_by_name(parent->of_node, "ulpi");
else if (parent->parent && parent->parent->of_node)
- np = of_find_node_by_name(parent->parent->of_node, "ulpi");
+ np = of_get_child_by_name(parent->parent->of_node, "ulpi");
if (!np)
return 0;

12
kernel.spec
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@ -598,24 +598,16 @@ Patch305: arm-imx6-hummingboard2.patch
Patch306: arm64-Add-option-of-13-for-FORCE_MAX_ZONEORDER.patch
# https://patchwork.kernel.org/patch/9967397/
# https://patchwork.kernel.org/patch/9815555/
# https://patchwork.kernel.org/patch/9815651/
# https://patchwork.kernel.org/patch/9819885/
# https://patchwork.kernel.org/patch/9820417/
# https://patchwork.kernel.org/patch/9821151/
# https://patchwork.kernel.org/patch/9821157/
Patch310: qcom-msm89xx-fixes.patch
# https://patchwork.kernel.org/patch/9831825/
# https://patchwork.kernel.org/patch/9833721/
# https://patchwork.kernel.org/patch/10054387/
Patch311: USB-ulpi-fix-bus-node-lookup.patch
# Fix USB on the RPi https://patchwork.kernel.org/patch/9879371/
Patch321: bcm283x-dma-mapping-skip-USB-devices-when-configuring-DMA-during-probe.patch
# bcm2837 bluetooth support
#
Patch323: bcm2837-bluetooth-support.patch
# Generic fixes and enablement for Socionext SoC and 96board