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| author | Ezequiel Garcia <ezequiel@collabora.com> | 2018-06-18 06:38:52 +0200 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab+samsung@kernel.org> | 2018-07-24 23:45:08 +0200 |
| commit | 5525b8314389a0c558d15464e86f438974b94e32 (patch) | |
| tree | 108ad7116251e10aa005ad9835c19e61c1007999 /drivers/media/v4l2-core | |
| parent | media: s5p-g2d: Remove unrequired wait in .job_abort (diff) | |
| download | linux-5525b8314389a0c558d15464e86f438974b94e32.tar.xz linux-5525b8314389a0c558d15464e86f438974b94e32.zip | |
media: mem2mem: Make .job_abort optional
Implementing job_abort() does not make sense on some drivers.
This is not a problem, as the abort is not required to
wait for the job to finish. Quite the opposite, drivers
are encouraged not to wait.
Demote v4l2_m2m_ops.job_abort from required to optional, and
clean all drivers with dummy implementations.
Signed-off-by: Ezequiel Garcia <ezequiel@collabora.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Diffstat (limited to 'drivers/media/v4l2-core')
| -rw-r--r-- | drivers/media/v4l2-core/v4l2-mem2mem.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/media/v4l2-core/v4l2-mem2mem.c b/drivers/media/v4l2-core/v4l2-mem2mem.c index 725da74d15d8..4aeedb91594a 100644 --- a/drivers/media/v4l2-core/v4l2-mem2mem.c +++ b/drivers/media/v4l2-core/v4l2-mem2mem.c @@ -322,7 +322,8 @@ static void v4l2_m2m_cancel_job(struct v4l2_m2m_ctx *m2m_ctx) m2m_ctx->job_flags |= TRANS_ABORT; if (m2m_ctx->job_flags & TRANS_RUNNING) { spin_unlock_irqrestore(&m2m_dev->job_spinlock, flags); - m2m_dev->m2m_ops->job_abort(m2m_ctx->priv); + if (m2m_dev->m2m_ops->job_abort) + m2m_dev->m2m_ops->job_abort(m2m_ctx->priv); dprintk("m2m_ctx %p running, will wait to complete", m2m_ctx); wait_event(m2m_ctx->finished, !(m2m_ctx->job_flags & TRANS_RUNNING)); @@ -788,8 +789,7 @@ struct v4l2_m2m_dev *v4l2_m2m_init(const struct v4l2_m2m_ops *m2m_ops) { struct v4l2_m2m_dev *m2m_dev; - if (!m2m_ops || WARN_ON(!m2m_ops->device_run) || - WARN_ON(!m2m_ops->job_abort)) + if (!m2m_ops || WARN_ON(!m2m_ops->device_run)) return ERR_PTR(-EINVAL); m2m_dev = kzalloc(sizeof *m2m_dev, GFP_KERNEL); |