BUG/MEDIUM: compression: Fix loop skipping unused blocks to get the next block

In comp_http_payload(), the loop skipping unused blocks is buggy and may
lead to a infinite loop if the first next block is unused. Indeed instead of
iterating on blocks, we always retrieve the same one because <blk> is used
instead of <next> to get the next block.

This bug was introduced when the EOM block was removed in 2.4. Thus, this
patch must be backported to 2.4.

(cherry picked from commit 86ca0e52f7fef2db55ee870d5740f715dac7c30d)
Signed-off-by: Christopher Faulet <cfaulet@haproxy.com>
1 file changed