On Tue, Dec 10, 2019 at 01:17:51PM -0800, Tadeusz Struk wrote: > When an application sends TPM commands in NONBLOCKING mode > the driver holds chip->tpm_mutex returning from write(), > which triggers WARNING: lock held when returning to user space! > To silence this warning the driver needs to release the mutex > and acquire it again in tpm_dev_async_work() before sending > the command. > > Cc: stable@xxxxxxxxxxxxxxx > Fixes: 9e1b74a63f776 (tpm: add support for nonblocking operation) > Signed-off-by: Tadeusz Struk <tadeusz.struk@xxxxxxxxx> Bundle the patch and test into same patch set (no need for cover letter) in the case we need to iterate (as they must be in sync anyway). /Jarkko
