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authorLinus Torvalds <torvalds@linux-foundation.org>2024-09-26 09:45:36 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2024-09-26 09:45:36 -0700
commit4965ddb166992557a25848049f1a70e56050eb7a (patch)
tree530e827ac6016e87c000354d2a8de97001900c99 /drivers/usb/misc/yurex.c
parent13882369ceb9b0953f9f5ff8563bbccfd80d0ffd (diff)
parent68d4209158f43a558c5553ea95ab0c8975eab18c (diff)
Merge tag 'usb-6.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB/Thunderbolt updates from Greg KH: "Here is the large set of USB and Thunderbolt changes for 6.12-rc1. Nothing "major" in here, except for a new 9p network gadget that has been worked on for a long time (all of the needed acks are here) Other than that, it's the usual set of: - Thunderbolt / USB4 driver updates and additions for new hardware - dwc3 driver updates and new features added - xhci driver updates - typec driver updates - USB gadget updates and api additions to make some gadgets more configurable by userspace - dwc2 driver updates - usb phy driver updates - usbip feature additions - other minor USB driver updates All of these have been in linux-next for a long time with no reported issues" * tag 'usb-6.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (145 commits) sub: cdns3: Use predefined PCI vendor ID constant sub: cdns2: Use predefined PCI vendor ID constant USB: misc: yurex: fix race between read and write USB: misc: cypress_cy7c63: check for short transfer USB: appledisplay: close race between probe and completion handler USB: class: CDC-ACM: fix race between get_serial and set_serial usb: r8a66597-hcd: make read-only const arrays static usb: typec: ucsi: Fix busy loop on ASUS VivoBooks usb: dwc3: rtk: Clean up error code in __get_dwc3_maximum_speed() usb: storage: ene_ub6250: Fix right shift warnings usb: roles: Improve the fix for a false positive recursive locking complaint locking/mutex: Introduce mutex_init_with_key() locking/mutex: Define mutex_init() once net/9p/usbg: fix CONFIG_USB_GADGET dependency usb: xhci: fix loss of data on Cadence xHC usb: xHCI: add XHCI_RESET_ON_RESUME quirk for Phytium xHCI host usb: dwc3: imx8mp: disable SS_CON and U3 wakeup for system sleep usb: dwc3: imx8mp: add 2 software managed quirk properties for host mode usb: host: xhci-plat: Parse xhci-missing_cas_quirk and apply quirk usb: misc: onboard_usb_dev: add Microchip usb5744 SMBus programming support ...
Diffstat (limited to 'drivers/usb/misc/yurex.c')
-rw-r--r--drivers/usb/misc/yurex.c10
1 files changed, 6 insertions, 4 deletions
diff --git a/drivers/usb/misc/yurex.c b/drivers/usb/misc/yurex.c
index 4745a320eae4..4a9859e03f6b 100644
--- a/drivers/usb/misc/yurex.c
+++ b/drivers/usb/misc/yurex.c
@@ -404,7 +404,6 @@ static ssize_t yurex_read(struct file *file, char __user *buffer, size_t count,
struct usb_yurex *dev;
int len = 0;
char in_buffer[MAX_S64_STRLEN];
- unsigned long flags;
dev = file->private_data;
@@ -419,9 +418,9 @@ static ssize_t yurex_read(struct file *file, char __user *buffer, size_t count,
return -EIO;
}
- spin_lock_irqsave(&dev->lock, flags);
+ spin_lock_irq(&dev->lock);
scnprintf(in_buffer, MAX_S64_STRLEN, "%lld\n", dev->bbu);
- spin_unlock_irqrestore(&dev->lock, flags);
+ spin_unlock_irq(&dev->lock);
mutex_unlock(&dev->io_mutex);
return simple_read_from_buffer(buffer, count, ppos, in_buffer, len);
@@ -511,8 +510,11 @@ static ssize_t yurex_write(struct file *file, const char __user *user_buffer,
__func__, retval);
goto error;
}
- if (set && timeout)
+ if (set && timeout) {
+ spin_lock_irq(&dev->lock);
dev->bbu = c2;
+ spin_unlock_irq(&dev->lock);
+ }
return timeout ? count : -EIO;
error: