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| author | Hans de Goede <[email protected]> | 2020-07-24 17:47:02 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <[email protected]> | 2020-07-29 12:11:05 +0000 |
| commit | 754498c1d6369d47b6433e9a05ba926255c2d699 (patch) | |
| tree | 12a07c97a5165d62e191ab8f73d3ed3387762d4d /drivers/usb/cdns3/core.c | |
| parent | usb: typec: tcpm: Fix AB BA lock inversion between tcpm code and the alt-mode... (diff) | |
| download | kernel-754498c1d6369d47b6433e9a05ba926255c2d699.tar.gz kernel-754498c1d6369d47b6433e9a05ba926255c2d699.zip | |
usb: typec: tcpm: Add WARN_ON ensure we are not trying to send 2 VDM packets at the same time
The tcpm.c code for sending VDMs assumes that there will only be one VDM
in flight at the time. The "queue" used by tcpm_queue_vdm is only 1 entry
deep.
This assumes that the higher layers (tcpm state-machine and alt-mode
drivers) ensure that queuing a new VDM before the old one has been
completely send (or it timed out) add a WARN_ON to check for this.
Reviewed-by: Heikki Krogerus <[email protected]>
Reviewed-by: Guenter Roeck <[email protected]>
Signed-off-by: Hans de Goede <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Greg Kroah-Hartman <[email protected]>
Diffstat (limited to 'drivers/usb/cdns3/core.c')
0 files changed, 0 insertions, 0 deletions