| commit | cde4ad8368840e414ecf67db258fe1dabaa5fd2e | [log] [tgz] |
|---|---|---|
| author | Alexander Shishkin <alexander.shishkin@linux.intel.com> | Mon Feb 15 19:12:06 2016 +0200 |
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | Sat Feb 20 14:09:14 2016 -0800 |
| tree | 17f5dee33891f9b3aed3e10709a36d285c59b892 | |
| parent | 1810f2c44817c74ca3d05d1e3981e3a2e2ceb6f5 [diff] |
stm class: Guard output assignment against concurrency It is possible to concurrently assign the same output (a character device writer or an stm_source device) to different stm devices, which sets off a strategically placed warning in stm_output_assign(). To avoid this, use a spinlock to serialize (un)assignments between outputs and stm devices. Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>