mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-11-18 17:54:13 +08:00
bb4e3b5ac8
usbmon registers the notifier chain, takes the bus lock and then goes to scan the existing devices for hooking up. Unfortunately, if usb_mon gets initialized while USB bus discovery is going on, it's possible that usbmon gets a notifier on one cpu (which runs without USB locks), and the scan is going on and also finds the new bus, resulting in a double sysfs registration, which then produces a WARNING. Pete Zaitcev did the bug diagnostics on this one Signed-off-by: Arjan van de Ven <arjan@linux.intel.com> Acked-by: Pete Zaitcev <zaitcev@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> |
||
---|---|---|
.. | ||
Kconfig | ||
Makefile | ||
mon_bin.c | ||
mon_dma.c | ||
mon_main.c | ||
mon_stat.c | ||
mon_text.c | ||
usb_mon.h |