diff options
| -rw-r--r-- | altosdroid/src/org/altusmetrum/AltosDroid/AltosBluetooth.java | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/altosdroid/src/org/altusmetrum/AltosDroid/AltosBluetooth.java b/altosdroid/src/org/altusmetrum/AltosDroid/AltosBluetooth.java index 15efc0e2..51937b7f 100644 --- a/altosdroid/src/org/altusmetrum/AltosDroid/AltosBluetooth.java +++ b/altosdroid/src/org/altusmetrum/AltosDroid/AltosBluetooth.java @@ -199,6 +199,8 @@ public class AltosBluetooth extends AltosDroidLink { } int write(byte[] buffer, int len) { + if (output == null) + return -1; try { output.write(buffer, 0, len); } catch (IOException ie) { @@ -208,6 +210,8 @@ public class AltosBluetooth extends AltosDroidLink { } int read(byte[] buffer, int len) { + if (input == null) + return -1; try { return input.read(buffer, 0, len); } catch (IOException ie) { |