[dpdk-dev] [PATCH v2] eal/linuxapp: fix return value check of mknod()
Wei Dai
wei.dai at intel.com
Wed Nov 16 03:40:47 CET 2016
In function pci_mknod_uio_dev() in lib/librte_eal/eal/eal_pci_uio.c,
The return value of mknod() is ret, not f got by fopen().
So the value of ret should be checked for mknod().
Fixes: 67c536bdad93 ("pci: move uio mapping in a dedicated file")
Signed-off-by: Wei Dai <wei.dai at intel.com>
---
fix my local git setting and send same patch again to
make merging easier
lib/librte_eal/linuxapp/eal/eal_pci_uio.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/lib/librte_eal/linuxapp/eal/eal_pci_uio.c b/lib/librte_eal/linuxapp/eal/eal_pci_uio.c
index 1786b75..3e4ffb5 100644
--- a/lib/librte_eal/linuxapp/eal/eal_pci_uio.c
+++ b/lib/librte_eal/linuxapp/eal/eal_pci_uio.c
@@ -133,7 +133,7 @@ pci_mknod_uio_dev(const char *sysfs_uio_path, unsigned uio_num)
snprintf(filename, sizeof(filename), "/dev/uio%u", uio_num);
dev = makedev(major, minor);
ret = mknod(filename, S_IFCHR | S_IRUSR | S_IWUSR, dev);
- if (f == NULL) {
+ if (ret != 0) {
RTE_LOG(ERR, EAL, "%s(): mknod() failed %s\n",
__func__, strerror(errno));
return -1;
--
2.5.5
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