[dpdk-dev] [PATCH] net/szedata2: fix check of mmap return value

[Matej Vido]

Fixes: 9eddbdb4b094 ("szedata2: support link state operations")
Cc: stable at dpdk.org

Signed-off-by: Matej Vido <vido at cesnet.cz>
---
 drivers/net/szedata2/rte_eth_szedata2.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/szedata2/rte_eth_szedata2.c b/drivers/net/szedata2/rte_eth_szedata2.c
index 74f151c..af0580a 100644
--- a/drivers/net/szedata2/rte_eth_szedata2.c
+++ b/drivers/net/szedata2/rte_eth_szedata2.c
@@ -1553,7 +1553,7 @@ struct pmd_internals {
 			pci_dev->mem_resource[PCI_RESOURCE_NUMBER].len,
 			PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0);
 	close(fd);
-	if (pci_resource_ptr == NULL) {
+	if (pci_resource_ptr == MAP_FAILED) {
 		RTE_LOG(ERR, PMD, "Could not mmap file %s (fd = %d)\n",
 				rsc_filename, fd);
 		return -EINVAL;
-- 
1.8.4