usb: Skip add/remove of FD on destroyed source

[libsigrok.git] / src / hardware / uni-t-dmm / api.c

diff --git a/src/hardware/uni-t-dmm/api.c b/src/hardware/uni-t-dmm/api.c
index a21663fca5f1d3f0f5f7f71a0bd3b7f90ba3460d..9a614e9d5c6c238d017dbbfbcceef9dcd5d45856 100644 (file)
--- a/src/hardware/uni-t-dmm/api.c
+++ b/src/hardware/uni-t-dmm/api.c
@@ -18,6 +18,7 @@
  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
  */
 
+#include <config.h>
 #include <stdlib.h>
 #include <string.h>
 #include <libsigrok/libsigrok.h>
@@ -201,7 +202,7 @@ static int dev_acquisition_start(const struct sr_dev_inst *sdi, void *cb_data)
        /* Send header packet to the session bus. */
        std_session_send_df_header(sdi, LOG_PREFIX);
 
-       sr_session_source_add(sdi->session, 0, 0, 10 /* poll_timeout */,
+       sr_session_source_add(sdi->session, -1, 0, 10 /* poll_timeout */,
                      uni_t_dmm_receive_data, (void *)sdi);
 
        return SR_OK;
@@ -220,7 +221,7 @@ static int dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data)
        packet.type = SR_DF_END;
        sr_session_send(sdi, &packet);
 
-       sr_session_source_remove(sdi->session, 0);
+       sr_session_source_remove(sdi->session, -1);
 
        return SR_OK;
 }