From patchwork Wed Jun 24 10:41:15 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sean Anderson X-Patchwork-Id: 242848 List-Id: U-Boot discussion From: seanga2 at gmail.com (Sean Anderson) Date: Wed, 24 Jun 2020 06:41:15 -0400 Subject: [PATCH v14 10/20] lib: Always set errno in hcreate_r In-Reply-To: <20200624104125.363509-1-seanga2@gmail.com> References: <20200624104125.363509-1-seanga2@gmail.com> Message-ID: <20200624104125.363509-11-seanga2@gmail.com> This could give a confusing error message if it failed and didn't set errno. Signed-off-by: Sean Anderson Reviewed-by: Bin Meng --- Changes in v5: - New lib/hashtable.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/lib/hashtable.c b/lib/hashtable.c index b96dbe19be..7b6781bc35 100644 --- a/lib/hashtable.c +++ b/lib/hashtable.c @@ -110,8 +110,10 @@ int hcreate_r(size_t nel, struct hsearch_data *htab) } /* There is still another table active. Return with error. */ - if (htab->table != NULL) + if (htab->table != NULL) { + __set_errno(EINVAL); return 0; + } /* Change nel to the first prime number not smaller as nel. */ nel |= 1; /* make odd */ @@ -124,8 +126,10 @@ int hcreate_r(size_t nel, struct hsearch_data *htab) /* allocate memory and zero out */ htab->table = (struct env_entry_node *)calloc(htab->size + 1, sizeof(struct env_entry_node)); - if (htab->table == NULL) + if (htab->table == NULL) { + __set_errno(ENOMEM); return 0; + } /* everything went alright */ return 1;