If (dev_id->ids & 0xf) < current_id, must updates pos when continue.
Otherwise an infinite loop.
No other places use the pos value, just move to the top of while.
Signed-off-by: Kinglong Mee <kinglongmee@xxxxxxxxx>
---
utils/blkmapd/device-inq.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/utils/blkmapd/device-inq.c b/utils/blkmapd/device-inq.c
index c5bf71f..6b56b67 100644
--- a/utils/blkmapd/device-inq.c
+++ b/utils/blkmapd/device-inq.c
@@ -196,6 +196,8 @@ struct bl_serial *bldev_read_serial(int fd, const char *filename)
while (pos < (len - devid_len)) {
dev_id = (struct bl_dev_id *)&(dev_root->data[pos]);
+ pos += (dev_id->len + devid_len);
+
if ((dev_id->ids & 0xf) < current_id)
continue;
switch (dev_id->ids & 0xf) {
@@ -226,7 +228,6 @@ struct bl_serial *bldev_read_serial(int fd, const char *filename)
}
if (current_id == 3)
break;
- pos += (dev_id->len + devid_len);
}
out:
if (!serial_out)
--
2.4.1
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