[PATCH] lib/hash: fix the return value description of rte_hash

[Chenming C]

The rte_hash lookup can return ZERO which is not a positive value.

Signed-off-by: Chenming C <ccm at ccm.ink>
---
 lib/hash/rte_hash.h | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/lib/hash/rte_hash.h b/lib/hash/rte_hash.h
index 7fa9702..1bf1aac 100644
--- a/lib/hash/rte_hash.h
+++ b/lib/hash/rte_hash.h
@@ -288,7 +288,7 @@ struct rte_hash *
  * @return
  *   - -EINVAL if the parameters are invalid.
  *   - -ENOSPC if there is no space in the hash for this key.
- *   - A positive value that can be used by the caller as an offset into an
+ *   - A non-negative value that can be used by the caller as an offset into an
  *     array of user data. This value is unique for this key. This
  *     unique key id may be larger than the user specified entry count
  *     when RTE_HASH_EXTRA_FLAGS_MULTI_WRITER_ADD flag is set.
@@ -312,7 +312,7 @@ struct rte_hash *
  * @return
  *   - -EINVAL if the parameters are invalid.
  *   - -ENOSPC if there is no space in the hash for this key.
- *   - A positive value that can be used by the caller as an offset into an
+ *   - A non-negative value that can be used by the caller as an offset into an
  *     array of user data. This value is unique for this key. This
  *     unique key ID may be larger than the user specified entry count
  *     when RTE_HASH_EXTRA_FLAGS_MULTI_WRITER_ADD flag is set.
@@ -343,7 +343,7 @@ struct rte_hash *
  * @return
  *   - -EINVAL if the parameters are invalid.
  *   - -ENOENT if the key is not found.
- *   - A positive value that can be used by the caller as an offset into an
+ *   - A non-negative value that can be used by the caller as an offset into an
  *     array of user data. This value is unique for this key, and is the same
  *     value that was returned when the key was added.
  */
@@ -375,7 +375,7 @@ struct rte_hash *
  * @return
  *   - -EINVAL if the parameters are invalid.
  *   - -ENOENT if the key is not found.
- *   - A positive value that can be used by the caller as an offset into an
+ *   - A non-negative value that can be used by the caller as an offset into an
  *     array of user data. This value is unique for this key, and is the same
  *     value that was returned when the key was added.
  */
@@ -442,7 +442,7 @@ struct rte_hash *
  * @param data
  *   Output with pointer to data returned from the hash table.
  * @return
- *   - A positive value that can be used by the caller as an offset into an
+ *   - A non-negative value that can be used by the caller as an offset into an
  *     array of user data. This value is unique for this key, and is the same
  *     value that was returned when the key was added.
  *   - -EINVAL if the parameters are invalid.
@@ -467,7 +467,7 @@ struct rte_hash *
  * @param data
  *   Output with pointer to data returned from the hash table.
  * @return
- *   - A positive value that can be used by the caller as an offset into an
+ *   - A non-negative value that can be used by the caller as an offset into an
  *     array of user data. This value is unique for this key, and is the same
  *     value that was returned when the key was added.
  *   - -EINVAL if the parameters are invalid.
@@ -490,7 +490,7 @@ struct rte_hash *
  * @return
  *   - -EINVAL if the parameters are invalid.
  *   - -ENOENT if the key is not found.
- *   - A positive value that can be used by the caller as an offset into an
+ *   - A non-negative value that can be used by the caller as an offset into an
  *     array of user data. This value is unique for this key, and is the same
  *     value that was returned when the key was added.
  */
@@ -512,7 +512,7 @@ struct rte_hash *
  * @return
  *   - -EINVAL if the parameters are invalid.
  *   - -ENOENT if the key is not found.
- *   - A positive value that can be used by the caller as an offset into an
+ *   - A non-negative value that can be used by the caller as an offset into an
  *     array of user data. This value is unique for this key, and is the same
  *     value that was returned when the key was added.
  */
-- 
1.8.3.1