[dpdk-dev] [PATCH] ring: fix error return value when creating ring
Yunjian Wang
wangyunjian at huawei.com
Mon Jan 10 10:23:03 CET 2022
The error value returned by rte_ring_create_elem() should be positive
integers. However, if the rte_ring_get_memsize_elem() function fails,
a negative number is returned and is directly used as the return value.
As a result, this will cause the external call to check the return
value to fail(like called by rte_mempool_create()).
Fixes: a182620042aa ("ring: get size in memory")
Cc: stable at dpdk.org
Reported-by: Nan Zhou <zhounan14 at huawei.com>
Signed-off-by: Yunjian Wang <wangyunjian at huawei.com>
---
lib/ring/rte_ring.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/lib/ring/rte_ring.c b/lib/ring/rte_ring.c
index f17bd966be..185f9be798 100644
--- a/lib/ring/rte_ring.c
+++ b/lib/ring/rte_ring.c
@@ -267,7 +267,7 @@ rte_ring_create_elem(const char *name, unsigned int esize, unsigned int count,
ring_size = rte_ring_get_memsize_elem(esize, count);
if (ring_size < 0) {
- rte_errno = ring_size;
+ rte_errno = -ring_size;
return NULL;
}
--
2.27.0
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