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Btrfs-progs: skip open devices which is missing 

A device can be added to the device list without getting a name, so we may
access to illegal addresses while opening devices with their name.

Signed-off-by: Liu Bo <bo.li.liu@oracle.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
master
Liu Bo 2013-06-22 13:32:42 +08:00 committed by Chris Mason
parent 699e69b7bd
commit 785bfe3923
1 changed files with 4 additions and 0 deletions
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4
volumes.c
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@ -186,6 +186,10 @@ int btrfs_open_devices(struct btrfs_fs_devices *fs_devices, int flags)
list_for_each(cur, head) {
device = list_entry(cur, struct btrfs_device, dev_list);
if (!device->name) {
printk("no name for device %llu, skip it now\n", device->devid);
continue;
}
fd = open(device->name, flags);
if (fd < 0) {