diff options
author | Hans de Goede <hdegoede@redhat.com> | 2023-05-11 20:18:24 +0300 |
---|---|---|
committer | Mauro Carvalho Chehab <mchehab@kernel.org> | 2023-06-09 16:41:22 +0300 |
commit | e1278e6187b804566b789bdfd5339cceed035d71 (patch) | |
tree | a4c39719bc2a3080339e23a125f997c88dfe4a1f /drivers/staging | |
parent | 347f2e56b94e1ed197daa6697b22af049a82157d (diff) | |
download | linux-e1278e6187b804566b789bdfd5339cceed035d71.tar.xz |
media: atomisp: Simplify atomisp_pipe_check()
All switch (pipe->asd->streaming) cases in atomisp_pipe_check()
are either no-ops or never happen:
1. ATOMISP_DEVICE_STREAMING_DISABLED already is a no-op
2. The videobuf2 core guarantees that when we are streaming
vb2_is_busy() returns true. So the ATOMISP_DEVICE_STREAMING_ENABLED case
is already handled by the if above the switch (pipe->asd->streaming).
3. After recent changes pipe->asd->streaming is only ever set to
ATOMISP_DEVICE_STREAMING_STOPPING in atomisp_assert_recovery_work() and
that function holds isp->mutex and always transitions the streaming state
to ATOMISP_DEVICE_STREAMING_DISABLED or ATOMISP_DEVICE_STREAMING_ENABLED
before releasing the mutex. So atomisp_pipe_check() never sees
ATOMISP_DEVICE_STREAMING_STOPPING.
Remove the entire switch-case.
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
Diffstat (limited to 'drivers/staging')
-rw-r--r-- | drivers/staging/media/atomisp/pci/atomisp_ioctl.c | 16 |
1 files changed, 0 insertions, 16 deletions
diff --git a/drivers/staging/media/atomisp/pci/atomisp_ioctl.c b/drivers/staging/media/atomisp/pci/atomisp_ioctl.c index 087ec5120bce..08a3d98794df 100644 --- a/drivers/staging/media/atomisp/pci/atomisp_ioctl.c +++ b/drivers/staging/media/atomisp/pci/atomisp_ioctl.c @@ -528,22 +528,6 @@ int atomisp_pipe_check(struct atomisp_video_pipe *pipe, bool settings_change) return -EBUSY; } - switch (pipe->asd->streaming) { - case ATOMISP_DEVICE_STREAMING_DISABLED: - break; - case ATOMISP_DEVICE_STREAMING_ENABLED: - if (settings_change) { - dev_err(pipe->isp->dev, "Set fmt/input IOCTL while streaming\n"); - return -EBUSY; - } - break; - case ATOMISP_DEVICE_STREAMING_STOPPING: - dev_err(pipe->isp->dev, "IOCTL issued while stopping\n"); - return -EBUSY; - default: - return -EINVAL; - } - return 0; } |