diff options
| author | Viresh Kumar <viresh.kumar at linaro.org> | 2013-08-16 11:43:03 +0000 |
|---|---|---|
| committer | Gary S. Robertson <gary.robertson@linaro.org> | 2013-08-16 18:37:33 -0500 |
| commit | 91f8fa012c1e9fd79f2fcd8c07fc31caeafc6848 (patch) | |
| tree | e3cd0db6f277cb5497eb6daaa00871e056c14ba0 /arch/x86/realmode | |
| parent | d9b8a041142ea90fbabb0985b2003207a8d280b5 (diff) | |
tty: serial: altera: drop uart_port->lock before calling tty_flip_buffer_push()
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 at linutronix.de>
Date: Tue May 29 21:53:50 2007 +0100
[ARM] 4417/1: Serial: Fix AMBA drivers locking
Cc: Tobias Klauser <tklauser at distanz.ch>
Signed-off-by: Viresh Kumar <viresh.kumar at linaro.org>
Diffstat (limited to 'arch/x86/realmode')
0 files changed, 0 insertions, 0 deletions