diff options
| author | Viresh Kumar <viresh.kumar@linaro.org> | 2013-08-16 16:18:33 +0530 |
|---|---|---|
| committer | Gary S. Robertson <gary.robertson@linaro.org> | 2013-08-19 08:46:33 -0500 |
| commit | 726a88c237f0fd8510e208ea367c614e48d1fa39 (patch) | |
| tree | 995d1551d928077155266b1c1b72b73c05d8b2bf /arch/powerpc/kernel/traps.c | |
| parent | 91f8fa012c1e9fd79f2fcd8c07fc31caeafc6848 (diff) | |
tty: serial: samsung: drop uart_port->lock before calling tty_flip_buffer_push()linux-lng-3.10.6-2013.08
The -rt patch triggers a lockdep warning for serial drivers if
tty_flip_buffer_push() is called with uart_port->lock locked. This never shows
up on UP kernels.
Release the port lock before calling tty_flip_buffer_push() and reacquire it
after the call.
Similar stuff was already done for few other drivers in the past, like:
commit 2389b272168ceec056ca1d8a870a97fa9c26e11a
Author: Thomas Gleixner <tglx@linutronix.de>
Date: Tue May 29 21:53:50 2007 +0100
[ARM] 4417/1: Serial: Fix AMBA drivers locking
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Diffstat (limited to 'arch/powerpc/kernel/traps.c')
0 files changed, 0 insertions, 0 deletions