video: driver: Check failures during session close

Check if cmd queue write failed and return the error code
during session close.

Change-Id: Iaa4579cdb8ad5f622623c957a781ab0a9104153d
Signed-off-by: Mihir Ganu <[email protected]>

driver/vidc/src/venus_hfi.c

@@ -3134,7 +3134,7 @@ int venus_hfi_session_close(struct msm_vidc_inst *inst)
 				NULL,
 				0);
 	if (!rc)
-		__iface_cmdq_write(inst->core, inst->packet);
+		rc = __iface_cmdq_write(inst->core, inst->packet);
 
 	return rc;
 }