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| author | Johan Hovold <johan@kernel.org> | 2020-10-25 20:45:48 +0300 |
|---|---|---|
| committer | Johan Hovold <johan@kernel.org> | 2020-11-04 13:01:08 +0300 |
| commit | 7353cad7ee4deaefc16e94727e69285563e219f6 (patch) | |
| tree | ec988e47ed724ba1961112b6efdff04c7e308e59 /tools/perf/scripts/python | |
| parent | 696c541c8c6cfa05d65aa24ae2b9e720fc01766e (diff) | |
| download | linux-7353cad7ee4deaefc16e94727e69285563e219f6.tar.xz | |
USB: serial: keyspan_pda: fix write deadlock
The write() callback can be called in interrupt context (e.g. when used
as a console) so interrupts must be disabled while holding the port lock
to prevent a possible deadlock.
Fixes: e81ee637e4ae ("usb-serial: possible irq lock inversion (PPP vs. usb/serial)")
Fixes: 507ca9bc0476 ("[PATCH] USB: add ability for usb-serial drivers to determine if their write urb is currently being used.")
Cc: stable <stable@vger.kernel.org> # 2.6.19
Acked-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
Diffstat (limited to 'tools/perf/scripts/python')
0 files changed, 0 insertions, 0 deletions