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pci: fix check of mknod

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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: f7f97c16048e ("pci: add option --create-uio-dev to run without hotplug")

Signed-off-by: Wei Dai <wei.dai@intel.com>
Acked-by: Olivier Matz <olivier.matz@6wind.com>
This commit is contained in:
Wei Dai 2016-11-17 14:47:15 +08:00 committed by Thomas Monjalon
parent 5d8f0baf69
commit f1d54e6dfb
1 changed files with 1 additions and 1 deletions
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lib/librte_eal/linuxapp/eal/eal_pci_uio.c
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@ -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;