diff options
| author | Alexander Usyskin <alexander.usyskin@intel.com> | 2021-11-12 07:28:09 +0100 |
|---|---|---|
| committer | Kalle Valo <kvalo@codeaurora.org> | 2021-11-26 17:31:46 +0100 |
| commit | 2cca3465147d650be3de04927a99784b30251ade (patch) | |
| tree | 6c2345c0c6179550e5f88e610a5ce6d86aed9c74 /drivers/misc/mei/client.c | |
| parent | mwifiex: Ignore BTCOEX events from the 88W8897 firmware (diff) | |
| download | linux-2cca3465147d650be3de04927a99784b30251ade.tar.xz linux-2cca3465147d650be3de04927a99784b30251ade.zip | |
mei: bus: add client dma interface
Expose the client dma mapping via mei client bus interface.
The client dma has to be mapped before the device is enabled,
therefore we need to create device linking already during mapping
and we need to unmap after the client is disable hence we need to
postpone the unlink and flush till unmapping or when
destroying the device.
Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com>
Co-developed-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://lore.kernel.org/r/20210420172755.12178-1-emmanuel.grumbach@intel.com
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20211112062814.7502-1-emmanuel.grumbach@intel.com
Diffstat (limited to 'drivers/misc/mei/client.c')
| -rw-r--r-- | drivers/misc/mei/client.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/misc/mei/client.c b/drivers/misc/mei/client.c index 96f4e59c32a5..0e90591235a6 100644 --- a/drivers/misc/mei/client.c +++ b/drivers/misc/mei/client.c @@ -700,6 +700,9 @@ int mei_cl_unlink(struct mei_cl *cl) cl_dbg(dev, cl, "unlink client"); + if (cl->state == MEI_FILE_UNINITIALIZED) + return 0; + if (dev->open_handle_count > 0) dev->open_handle_count--; |