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pci: fix UIO interrupt file descriptor check before close

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The "dev->intr_handle.fd" is possibly a negative value while it is
passed as an argument to function "close". Fix the check to the fd.

Fixes: 5a60a7ffc8 ("pci: introduce functions to alloc and free uio resource")

Signed-off-by: Yong Wang <wang.yong19@zte.com.cn>
This commit is contained in:
Yong Wang 2017-02-10 08:53:17 -05:00 committed by Thomas Monjalon
parent b392e9871d
commit 511a4c74b8
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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@ -230,7 +230,7 @@ pci_uio_free_resource(struct rte_pci_device *dev,
close(dev->intr_handle.uio_cfg_fd);
dev->intr_handle.uio_cfg_fd = -1;
}
if (dev->intr_handle.fd) {
if (dev->intr_handle.fd >= 0) {
close(dev->intr_handle.fd);
dev->intr_handle.fd = -1;
dev->intr_handle.type = RTE_INTR_HANDLE_UNKNOWN;