mem: fix mmap error check on huge page attach

mmap(2) returns MAP_FAILED, not NULL, on failure.

Signed-off-by: Michael McConville <mmcco@mykolab.com>
Reviewed-by: Ferruh Yigit <ferruh.yigit@intel.com>

diff --git a/lib/librte_eal/bsdapp/eal/eal_memory.c b/lib/librte_eal/bsdapp/eal/eal_memory.c
index 45b198f..bdfb882 100644 (file)
--- a/lib/librte_eal/bsdapp/eal/eal_memory.c
+++ b/lib/librte_eal/bsdapp/eal/eal_memory.c
@@ -126,7 +126,7 @@ rte_eal_hugepage_attach(void)
        /* Map the shared hugepage_info into the process address spaces */
        hpi = mmap(NULL, sizeof(struct hugepage_info), PROT_READ, MAP_PRIVATE,
                        fd_hugepage_info, 0);
-       if (hpi == NULL) {
+       if (hpi == MAP_FAILED) {
                RTE_LOG(ERR, EAL, "Could not mmap %s\n", eal_hugepage_info_path());
                goto error;
        }