On 12/17/19 10:25 AM, Tony Lindgren wrote:
Hi,
* Dave Gerlach <d-gerlach@xxxxxx> [191211 20:02]:
Any user of wkup_m3_ipc calls wkup_m3_ipc_get to get a handle and this
checks the value of the static variable m3_ipc_state to see if the
wkup_m3 is ready. Currently this is populated during probe before
rproc_boot has been called, meaning there is a window of time that
wkup_m3_ipc_get can return a valid handle but the wkup_m3 itself is not
ready, leading to invalid IPC calls to the wkup_m3 and system
instability.
To avoid this, move the population of the m3_ipc_state variable until
after rproc_boot has succeeded to guarantee a valid and usable handle
is always returned.
Santosh, do you want me to pick this one into my fixes branch?
Sure, go ahead.
Acked-by: Santosh Shilimkar <ssantosh@xxxxxxxxxx>
