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@xxxxxxxxxx>
---
volumes.c | 4 ++++
1 files changed, 4 insertions(+), 0 deletions(-)
diff --git a/volumes.c b/volumes.c
index e7923ee..f9ac2af 100644
--- a/volumes.c
+++ b/volumes.c
@@ -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) {
--
1.7.7
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