diff options
Diffstat (limited to 'src/viterbi.c')
| -rw-r--r-- | src/viterbi.c | 19 |
1 files changed, 16 insertions, 3 deletions
diff --git a/src/viterbi.c b/src/viterbi.c index 854754cb..308cfe07 100644 --- a/src/viterbi.c +++ b/src/viterbi.c @@ -394,12 +394,15 @@ static struct vtrellis *generate_trellis(const struct osmo_conv_code *code) int olen = (code->N == 2) ? 2 : 4; trellis = (struct vtrellis *) calloc(1, sizeof(struct vtrellis)); + if (!trellis) + goto fail; + trellis->num_states = ns; trellis->sums = vdec_malloc(ns); trellis->outputs = vdec_malloc(ns * olen); trellis->vals = (uint8_t *) malloc(ns * sizeof(uint8_t)); - if (!trellis->sums || !trellis->outputs) + if (!trellis->sums || !trellis->outputs || !trellis->vals) goto fail; /* Populate the trellis state objects */ @@ -507,9 +510,13 @@ static void free_vdec(struct vdecoder *dec) if (!dec) return; - vdec_free(dec->paths[0]); - free(dec->paths); free_trellis(dec->trellis); + + if (dec->paths != NULL) { + vdec_free(dec->paths[0]); + free(dec->paths); + } + free(dec); } @@ -572,7 +579,13 @@ static struct vdecoder *alloc_vdec(const struct osmo_conv_code *code) goto fail; dec->paths = (int16_t **) malloc(sizeof(int16_t *) * dec->len); + if (!dec->paths) + goto fail; + dec->paths[0] = vdec_malloc(ns * dec->len); + if (!dec->paths[0]) + goto fail; + for (i = 1; i < dec->len; i++) dec->paths[i] = &dec->paths[0][i * ns]; |