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authorLinus Torvalds <torvalds@linux-foundation.org>2018-08-18 19:21:49 +0200
committerLinus Torvalds <torvalds@linux-foundation.org>2018-08-18 19:21:49 +0200
commit5695d5d1970f975de059bb6dec76941440f62488 (patch)
tree6b03381a0b103324c286a83ebb4154719b514feb /drivers/usb/misc/legousbtower.c
parentMerge tag '9p-for-4.19-2' of git://github.com/martinetd/linux (diff)
parentUSB: serial: pl2303: add a new device id for ATEN (diff)
downloadlinux-5695d5d1970f975de059bb6dec76941440f62488.tar.xz
linux-5695d5d1970f975de059bb6dec76941440f62488.zip
Merge tag 'usb-4.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB/PHY updates from Greg KH: "Here is the big USB and phy driver patch set for 4.19-rc1. Nothing huge but there was a lot of work that happened this development cycle: - lots of type-c work, with drivers graduating out of staging, and displayport support being added. - new PHY drivers - the normal collection of gadget driver updates and fixes - code churn to work on the urb handling path, using irqsave() everywhere in anticipation of making this codepath a lot simpler in the future. - usbserial driver fixes and reworks - other misc changes All of these have been in linux-next with no reported issues for a while" * tag 'usb-4.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (159 commits) USB: serial: pl2303: add a new device id for ATEN usb: renesas_usbhs: Kconfig: convert to SPDX identifiers usb: dwc3: gadget: Check MaxPacketSize from descriptor usb: dwc2: Turn on uframe_sched on "stm32f4x9_fsotg" platforms usb: dwc2: Turn on uframe_sched on "amlogic" platforms usb: dwc2: Turn on uframe_sched on "his" platforms usb: dwc2: Turn on uframe_sched on "bcm" platforms usb: dwc2: gadget: ISOC's starting flow improvement usb: dwc2: Make dwc2_readl/writel functions endianness-agnostic. usb: dwc3: core: Enable AutoRetry feature in the controller usb: dwc3: Set default mode for dwc_usb31 usb: gadget: udc: renesas_usb3: Add register of usb role switch usb: dwc2: replace ioread32/iowrite32_rep with dwc2_readl/writel_rep usb: dwc2: Modify dwc2_readl/writel functions prototype usb: dwc3: pci: Intel Merrifield can be host usb: dwc3: pci: Supply device properties via driver data arm64: dts: dwc3: description of incr burst type usb: dwc3: Enable undefined length INCR burst type usb: dwc3: add global soc bus configuration reg0 usb: dwc3: Describe 'wakeup_work' field of struct dwc3_pci ...
Diffstat (limited to 'drivers/usb/misc/legousbtower.c')
-rw-r--r--drivers/usb/misc/legousbtower.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/usb/misc/legousbtower.c b/drivers/usb/misc/legousbtower.c
index bf47bd8bc76f..006cf13b2199 100644
--- a/drivers/usb/misc/legousbtower.c
+++ b/drivers/usb/misc/legousbtower.c
@@ -722,6 +722,7 @@ static void tower_interrupt_in_callback (struct urb *urb)
struct lego_usb_tower *dev = urb->context;
int status = urb->status;
int retval;
+ unsigned long flags;
lego_usb_tower_debug_data(&dev->udev->dev, __func__,
urb->actual_length, urb->transfer_buffer);
@@ -740,7 +741,7 @@ static void tower_interrupt_in_callback (struct urb *urb)
}
if (urb->actual_length > 0) {
- spin_lock (&dev->read_buffer_lock);
+ spin_lock_irqsave(&dev->read_buffer_lock, flags);
if (dev->read_buffer_length + urb->actual_length < read_buffer_size) {
memcpy (dev->read_buffer + dev->read_buffer_length,
dev->interrupt_in_buffer,
@@ -753,7 +754,7 @@ static void tower_interrupt_in_callback (struct urb *urb)
pr_warn("read_buffer overflow, %d bytes dropped\n",
urb->actual_length);
}
- spin_unlock (&dev->read_buffer_lock);
+ spin_unlock_irqrestore(&dev->read_buffer_lock, flags);
}
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