kernel/git/stable/linux-stable.git/drivers/usb/serial/quatech2.c, branch master

USB: serial: drop unused uaccess includes

2026-05-11T07:34:08+00:00

These drivers (and usb-serial.c) no longer use anything from uaccess.h directly so drop the unnecessary include directives. Reviewed-by: Greg Kroah-Hartman Signed-off-by: Johan Hovold

USB: serial: drop unused tty_driver includes

2026-05-11T07:33:40+00:00

USB serial drivers do not use anything from tty_driver.h directly (only core does) so drop the unnecessary include directives. Reviewed-by: Greg Kroah-Hartman Signed-off-by: Johan Hovold

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

2026-02-22T01:09:51+00:00

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

treewide: Replace kmalloc with kmalloc_obj for non-scalar types

2026-02-21T09:02:28+00:00

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: serial: quatech2: fix null-ptr-deref in qt2_process_read_urb()

2025-01-14T09:32:38+00:00

This patch addresses a null-ptr-deref in qt2_process_read_urb() due to an incorrect bounds check in the following: if (newport > serial->num_ports) { dev_err(&port->dev, "%s - port change to invalid port: %i\n", __func__, newport); break; } The condition doesn't account for the valid range of the serial->port buffer, which is from 0 to serial->num_ports - 1. When newport is equal to serial->num_ports, the assignment of "port" in the following code is out-of-bounds and NULL: serial_priv->current_port = newport; port = serial->port[serial_priv->current_port]; The fix checks if newport is greater than or equal to serial->num_ports indicating it is out-of-bounds. Reported-by: syzbot Closes: https://syzkaller.appspot.com/bug?extid=506479ebf12fe435d01a Fixes: f7a33e608d9a ("USB: serial: add quatech2 usb to serial driver") Cc: # 3.5 Signed-off-by: Qasim Ijaz Reviewed-by: Greg Kroah-Hartman Signed-off-by: Johan Hovold

move asm/unaligned.h to linux/unaligned.h

2024-10-02T21:23:23+00:00

asm/unaligned.h is always an include of asm-generic/unaligned.h; might as well move that thing to linux/unaligned.h and include that - there's nothing arch-specific in that header. auto-generated by the following: for i in `git grep -l -w asm/unaligned.h`; do sed -i -e "s/asm\/unaligned.h/linux\/unaligned.h/" $i done for i in `git grep -l -w asm-generic/unaligned.h`; do sed -i -e "s/asm-generic\/unaligned.h/linux\/unaligned.h/" $i done git mv include/asm-generic/unaligned.h include/linux/unaligned.h git mv tools/include/asm-generic/unaligned.h tools/include/linux/unaligned.h sed -i -e "/unaligned.h/d" include/asm-generic/Kbuild sed -i -e "s/__ASM_GENERIC/__LINUX/" include/linux/unaligned.h tools/include/linux/unaligned.h

USB: serial: drop driver owner initialization

2024-08-26T13:28:25+00:00

Core in usb_serial_register_drivers() already sets the .owner, so driver does not need to. Signed-off-by: Krzysztof Kozlowski Signed-off-by: Johan Hovold

USB: serial: return errors from break handling

2023-06-07T15:00:23+00:00

Start propagating errors to user space when setting the break state fails. This will be used by follow-on changes to also report when a driver or device does not support break control. Tested-by: Corey Minyard Signed-off-by: Johan Hovold

USB: serial: quatech2: remove unused qt2_setdevice function

2023-03-23T16:35:00+00:00

clang with W=1 reports drivers/usb/serial/quatech2.c:179:19: error: unused function 'qt2_setdevice' [-Werror,-Wunused-function] static inline int qt2_setdevice(struct usb_device *dev, u8 *data) ^ This function is not used, so remove it. Signed-off-by: Tom Rix Link: https://lore.kernel.org/r/20230321181255.1825963-1-trix@redhat.com Signed-off-by: Greg Kroah-Hartman

usb: serial: Make ->set_termios() old ktermios const

2022-08-30T12:22:35+00:00

There should be no reason to adjust old ktermios which is going to get discarded anyway. Reviewed-by: Andy Shevchenko Signed-off-by: Ilpo Järvinen Link: https://lore.kernel.org/r/20220816115739.10928-8-ilpo.jarvinen@linux.intel.com Signed-off-by: Greg Kroah-Hartman