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Add might_sleep() in OP-TEE RPC requests

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Merge tag 'tee-optee-for-5.4' of git://git.linaro.org/people/jens.wiklander/linux-tee into arm/drivers

Add might_sleep() in OP-TEE RPC requests

* tag 'tee-optee-for-5.4' of git://git.linaro.org/people/jens.wiklander/linux-tee:
  tee: optee: add might_sleep for RPC requests

Link: https://lore.kernel.org/r/20190815065659.GA13498@jax
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
This commit is contained in:
Arnd Bergmann 2019-08-15 14:29:42 +02:00
commit 157eed91b3
1 changed files with 1 additions and 0 deletions
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1
drivers/tee/optee/call.c
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@ -148,6 +148,7 @@ u32 optee_do_call_with_arg(struct tee_context *ctx, phys_addr_t parg)
*/
optee_cq_wait_for_completion(&optee->call_queue, &w);
} else if (OPTEE_SMC_RETURN_IS_RPC(res.a0)) {
might_sleep();
param.a0 = res.a0;
param.a1 = res.a1;
param.a2 = res.a2;