From: Nicolas Chautru Date: Tue, 31 May 2022 22:31:43 +0000 (-0700) Subject: baseband/acc100: add protection for some negative scenario X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=8454d94825181d7b833ea8346671e15b8dde5640;p=dpdk.git baseband/acc100: add protection for some negative scenario Catch exception in PMD in case of invalid input parameter. Fixes: 5ad5060f8f7a ("baseband/acc100: add LDPC processing functions") Cc: stable@dpdk.org Signed-off-by: Nicolas Chautru Reviewed-by: Maxime Coquelin --- diff --git a/drivers/baseband/acc100/rte_acc100_pmd.c b/drivers/baseband/acc100/rte_acc100_pmd.c index 79bee4345d..32c8bc2b34 100644 --- a/drivers/baseband/acc100/rte_acc100_pmd.c +++ b/drivers/baseband/acc100/rte_acc100_pmd.c @@ -1236,6 +1236,8 @@ get_k0(uint16_t n_cb, uint16_t z_c, uint8_t bg, uint8_t rv_index) return (bg == 1 ? ACC100_K0_3_1 : ACC100_K0_3_2) * z_c; } /* LBRM case - includes a division by N */ + if (unlikely(z_c == 0)) + return 0; if (rv_index == 1) return (((bg == 1 ? ACC100_K0_1_1 : ACC100_K0_1_2) * n_cb) / n) * z_c; @@ -1764,6 +1766,10 @@ acc100_dma_desc_td_fill(struct rte_bbdev_dec_op *op, /* Soft output */ if (check_bit(op->turbo_dec.op_flags, RTE_BBDEV_TURBO_SOFT_OUTPUT)) { + if (op->turbo_dec.soft_output.data == 0) { + rte_bbdev_log(ERR, "Soft output is not defined"); + return -1; + } if (check_bit(op->turbo_dec.op_flags, RTE_BBDEV_TURBO_EQUALIZER)) *s_out_length = e;