alsa-lib is changed to return a distinct negative value if running on an older kernel. -1 is only returned now if the kernel knows for sure that there is no card or pid. On older kernels, alsa-lib will return -ENOSYS.
Signed-off-by: Adam Goode agoode@google.com
diff --git a/seq/aconnect/aconnect.c b/seq/aconnect/aconnect.c index 85a7770..bbc5bb3 100644 --- a/seq/aconnect/aconnect.c +++ b/seq/aconnect/aconnect.c @@ -177,13 +177,13 @@ static void print_port(snd_seq_t *seq, snd_seq_client_info_t *cinfo, #ifdef HAVE_SEQ_CLIENT_INFO_GET_CARD card = snd_seq_client_info_get_card(cinfo); #endif - if (card != -1) + if (card >= 0) printf(",card=%d", card);
#ifdef HAVE_SEQ_CLIENT_INFO_GET_PID pid = snd_seq_client_info_get_pid(cinfo); #endif - if (pid != -1) + if (pid >= 0) printf(",pid=%d", pid); printf("]\n"); }