optee: ffa: Add NULL check in optee_ffa_lend_protmem

Sashiko (locally) reports a possible null dereference under memory
pressure due to the lack of validation of the allocated pointer.

Fix that by adding the missing check.

Fixes: 2b78d79cdf96 ("optee: FF-A: dynamic protected memory allocation")
Signed-off-by: Mostafa Saleh <smostafa@google.com>
Signed-off-by: Sebastian Ene <sebastianene@google.com>
Reviewed-by: Sumit Garg <sumit.garg@oss.qualcomm.com>
Reviewed-by: Sebastian Ene <sebastianene@google.com>
Signed-off-by: Jens Wiklander <jenswi@kernel.org>

0 files changed, 0 insertions, 0 deletions