compressdev: fix op allocation

Fixed bad logic in rte_comp_op_alloc() checking return
value from rte_comp_op_raw_bulk_alloc(). This
could have resulted in a seg-fault in error case.
Made rte_comp_ob_bulk_alloc() code consistent
with rte_comp_op_alloc().

Fixes: 96086db5a369 ("compressdev: add operation management")
Cc: stable@dpdk.org
Reported-by: Sabyasachi Sengupta <sabyasg@hpe.com>
Signed-off-by: Fiona Trahe <fiona.trahe@intel.com>
Acked-by: Shally Verma <shally.verma@caviumnetworks.com>

diff --git a/lib/librte_compressdev/rte_comp.c b/lib/librte_compressdev/rte_comp.c
index c663be5..4634c12 100644 (file)
--- a/lib/librte_compressdev/rte_comp.c
+++ b/lib/librte_compressdev/rte_comp.c
@@ -174,7 +174,7 @@ rte_comp_op_alloc(struct rte_mempool *mempool)
        int retval;
 
        retval = rte_comp_op_raw_bulk_alloc(mempool, &op, 1);
-       if (unlikely(retval < 0))
+       if (unlikely(retval != 1))
                return NULL;
 
        rte_comp_op_reset(op);
@@ -186,12 +186,12 @@ int __rte_experimental
 rte_comp_op_bulk_alloc(struct rte_mempool *mempool,
                struct rte_comp_op **ops, uint16_t nb_ops)
 {
-       int ret;
+       int retval;
        uint16_t i;
 
-       ret = rte_comp_op_raw_bulk_alloc(mempool, ops, nb_ops);
-       if (unlikely(ret < nb_ops))
-               return ret;
+       retval = rte_comp_op_raw_bulk_alloc(mempool, ops, nb_ops);
+       if (unlikely(retval != nb_ops))
+               return 0;
 
        for (i = 0; i < nb_ops; i++)
                rte_comp_op_reset(ops[i]);