[dpdk-dev] [PATCH v2] lib/compressdev: Fix logic error on op allocation

Fiona Trahe fiona.trahe at intel.com
Sat Oct 27 02:43:07 CEST 2018


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 at dpdk.org

Reported-by: Sabyasachi Sengupta <sabyasg at hpe.com>
Signed-off-by: Fiona Trahe <fiona.trahe at intel.com>
---
v2 change:
 - added Reported-by tag

 lib/librte_compressdev/rte_comp.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/lib/librte_compressdev/rte_comp.c b/lib/librte_compressdev/rte_comp.c
index c663be5..4634c12 100644
--- 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]);
-- 
2.7.4



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