crypto: ccp - Fix command completion detection race

The wait_event() function is used to detect command completion.  The
interrupt handler will set the wait condition variable when the interrupt
is triggered.  However, the variable used for wait_event() is initialized
after the command has been submitted, which can create a race condition
with the interrupt handler and result in the wait_event() never returning.
Move the initialization of the wait condition variable to just before
command submission.

Fixes: 200664d5237f ("crypto: ccp: Add Secure Encrypted Virtualization (SEV) command support")
Cc: <[email protected]> # 4.16.x-
Signed-off-by: Tom Lendacky <[email protected]>
Reviewed-by: Brijesh Singh <[email protected]>
Acked-by: Gary R Hook <[email protected]>
Acked-by: Gary R Hook <[email protected]>
Signed-off-by: Herbert Xu <[email protected]>

0 files changed, 0 insertions, 0 deletions