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| author | Eric Lescouet <lescouet@virtuallogix.com> | 2010-04-24 02:55:24 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2010-04-30 09:30:10 -0700 |
| commit | d01f42a22ef381ba973958e977209ac9a8667d57 (patch) | |
| tree | 3e6f4736cda22c6be5d5d77ec489b44cfc53f499 /mm/maccess.c | |
| parent | c0087580b8d414f6874cfe93d2653212842fcb44 (diff) | |
| download | linux-d01f42a22ef381ba973958e977209ac9a8667d57.tar.bz2 | |
staging: usbip: Fix deadlock
When detaching a port from the client side (usbip --detach 0),
the event thread, on the server side, is going to deadlock.
The "eh" server thread is getting USBIP_EH_RESET event and calls:
-> stub_device_reset() -> usb_reset_device()
the USB framework is then calling back _in the same "eh" thread_ :
-> stub_disconnect() -> usbip_stop_eh() -> wait_for_completion()
the "eh" thread is being asleep forever, waiting for its own completion.
This patch checks if "eh" is the current thread, in usbip_stop_eh().
Signed-off-by: Eric Lescouet <eric@lescouet.org>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'mm/maccess.c')
0 files changed, 0 insertions, 0 deletions