@@ -263,7 +263,10 @@ static inline int snd_pcm_direct_semaphore_down(snd_pcm_direct_t *dmix, int sem_
{
struct sembuf op[2] = { { sem_num, 0, 0 }, { sem_num, 1, SEM_UNDO } };
int err = semop(dmix->semid, op, 2);
- if (err == 0) dmix->locked[sem_num]++;
+ if (err == 0)
+ dmix->locked[sem_num]++;
+ else if (err == -1)
+ err = -errno;
return err;
}
@@ -271,7 +274,10 @@ static inline int snd_pcm_direct_semaphore_up(snd_pcm_direct_t *dmix, int sem_nu
{
struct sembuf op = { sem_num, -1, SEM_UNDO | IPC_NOWAIT };
int err = semop(dmix->semid, &op, 1);
- if (err == 0) dmix->locked[sem_num]--;
+ if (err == 0)
+ dmix->locked[sem_num]--;
+ else if (err == -1)
+ err = -errno;
return err;
}