user/sven/linux.git/drivers/usb/class/usblp.c, branch next/master

Convert 'alloc_obj' family to use the new default GFP_KERNEL argument

2026-02-22T01:09:51Z

This was done entirely with mindless brute force, using git grep -l '\

treewide: Replace kmalloc with kmalloc_obj for non-scalar types

2026-02-21T09:02:28Z

This is the result of running the Coccinelle script from scripts/coccinelle/api/kmalloc_objs.cocci. The script is designed to avoid scalar types (which need careful case-by-case checking), and instead replace kmalloc-family calls that allocate struct or union object instances: Single allocations: kmalloc(sizeof(TYPE), ...) are replaced with: kmalloc_obj(TYPE, ...) Array allocations: kmalloc_array(COUNT, sizeof(TYPE), ...) are replaced with: kmalloc_objs(TYPE, COUNT, ...) Flex array allocations: kmalloc(struct_size(PTR, FAM, COUNT), ...) are replaced with: kmalloc_flex(*PTR, FAM, COUNT, ...) (where TYPE may also be *VAR) The resulting allocations no longer return "void *", instead returning "TYPE *". Signed-off-by: Kees Cook

usb: usblp: Use min_t() to improve usblp_read()

2025-09-06T13:20:22Z

Use min_t() to improve usblp_read() and avoid calculating 'avail - usblp->readcount' twice. Use min_t(ssize_t,,) instead of min() to avoid a signedness error. Signed-off-by: Thorsten Blum Link: https://lore.kernel.org/r/20250829173713.56222-1-thorsten.blum@linux.dev Signed-off-by: Greg Kroah-Hartman

usb: usblp: clean up assignment inside if conditions

2025-07-21T14:30:54Z

This patch cleans up a few cases where assignments were made inside of if conditions, like if ((rv = func()) < 0) into two lines, to improve readability and be more in-line with Linux kernel coding style. It also cleans up checkpatch warnings like: ERROR: do not use assignment in if condition No functional change, just a style and maintainability fix. Signed-off-by: Darshan Rathod Link: https://lore.kernel.org/r/20250718091045.264129-1-darshan.rathod@siqol.com Signed-off-by: Greg Kroah-Hartman

Merge 6.13-rc7 into usb-next

2025-01-13T05:11:06Z

We need the USB fixes in here as well for testing. Signed-off-by: Greg Kroah-Hartman

USB: usblp: return error when setting unsupported protocol

2024-12-23T17:50:41Z

Fix the regression introduced by commit d8c6edfa3f4e ("USB: usblp: don't call usb_set_interface if there's a single alt"), which causes that unsupported protocols can also be set via ioctl when the num_altsetting of the device is 1. Move the check for protocol support to the earlier stage. Fixes: d8c6edfa3f4e ("USB: usblp: don't call usb_set_interface if there's a single alt") Cc: stable Signed-off-by: Jun Yan Link: https://lore.kernel.org/r/20241212143852.671889-1-jerrysteve1101@gmail.com Signed-off-by: Greg Kroah-Hartman

USB: usblp: remove redundant semicolon

2024-12-23T17:40:39Z

remove redundant semicolon in LPIOC_SOFT_RESET to fix the incorrect macro expansion syntax. Signed-off-by: Jun Yan Link: https://lore.kernel.org/r/20241213145314.785616-1-jerrysteve1101@gmail.com Signed-off-by: Greg Kroah-Hartman

USB: make devnode() callback in usb_class_driver take a const *

2022-10-20T10:11:56Z

With the changes to the driver core to make more pointers const, the USB subsystem also needs to be modified to take a const * for the devnode callback so that the driver core's constant pointer will also be properly propagated. Cc: Benjamin Tissoires Cc: Juergen Stuber Reviewed-by: Johan Hovold Acked-by: Pete Zaitcev Reviewed-by: Jiri Kosina Link: https://lore.kernel.org/r/20221001165128.2688526-1-gregkh@linuxfoundation.org Signed-off-by: Greg Kroah-Hartman

USB: usblp: fix a hang in poll() if disconnected

2021-03-10T08:36:13Z

Apparently an application that opens a device and calls select() on it, will hang if the decice is disconnected. It's a little surprising that we had this bug for 15 years, but apparently nobody ever uses select() with a printer: only write() and read(), and those work fine. Well, you can also select() with a timeout. The fix is modeled after devio.c. A few other drivers check the condition first, then do not add the wait queue in case the device is disconnected. We doubt that's completely race-free. So, this patch adds the process first, then locks properly and checks for the disconnect. Reviewed-by: Zqiang Signed-off-by: Pete Zaitcev Cc: stable Link: https://lore.kernel.org/r/20210303221053.1cf3313e@suzdal.zaitcev.lan Signed-off-by: Greg Kroah-Hartman

USB: usblp: don't call usb_set_interface if there's a single alt

2021-01-26T14:15:31Z

Some devices, such as the Winbond Electronics Corp. Virtual Com Port (Vendor=0416, ProdId=5011), lockup when usb_set_interface() or usb_clear_halt() are called. This device has only a single altsetting, so it should not be necessary to call usb_set_interface(). Acked-by: Pete Zaitcev Signed-off-by: Jeremy Figgins Link: https://lore.kernel.org/r/YAy9kJhM/rG8EQXC@watson Cc: stable Signed-off-by: Greg Kroah-Hartman