libusb: consider bad fd as a broken event

Application can use libusb_get_pollfds to get pollfds from libusb then
close the fd themselves. This cause the hotplug thread unable to leave
because it will be consider as a invalid event then loop forever instead
of a broken event that should be quit immediately.

Reviewed by: bapt
Sponsored by: FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D50959

This commit is contained in:

SHENGYI HUNG

2025-06-20 17:45:27 -04:00

committed by

Baptiste Daroussin

parent 7176e1e3b5

commit 4981b8968d

1 changed files with 2 additions and 0 deletions

									
										lib/libusb/libusb10_hotplug.c
									
		+2
		
												View File
												
				@@ -140,6 +140,8 @@ verify_event_validity(libusb_context *ctx)

								return (valid_event);

							return (invalid_event);

						}

						if (errno == EBADF)

							return (broken_event);

						return (invalid_event);

					} else if (ctx->usb_event_mode == usb_event_devd) {

						char buf[DEVCTL_MAXBUF];