Add additional checks for channel count, add debug logs

Signed-off-by: Mark Farrugia <mark.farrugia@fiberdyne.com.au>

1 files changed, 7 insertions, 1 deletions

diff --git a/src/avirt-config.c b/src/avirt-config.c
index 7a993ad..0f92540 100644
--- a/src/avirt-config.c
+++ b/src/avirt-config.c
@@ -309,6 +309,12 @@ int snd_avirt_stream_new(const char *name, unsigned int channels, int direction,
   char path[AVIRT_CONFIGFS_PATH_MAXLEN];
   char path_attr[AVIRT_CONFIGFS_PATH_MAXLEN];
 
+  if ((channels > __INT_MAX__) || (channels == 0))
+  {
+    AVIRT_ERROR_V("Channels '%d' is out of range!", channels);
+    return -ERANGE;
+  }
+
   IS_CONFIGFS_MOUNTED();
 
   // Check if card is already sealed
@@ -362,7 +368,7 @@ int snd_avirt_stream_new(const char *name, unsigned int channels, int direction,
     AVIRT_DEBUG("No map specified!");
   }
 
-  AVIRT_DEBUG_V("Created stream: %s", name);
+  AVIRT_DEBUG_V("Created stream: %s, map: %s, chans: %d", name, map, channels);
 
   return 0;
 }