route: release dst_entry.hh_cache when handling redirects
Stable-3.0 commit 42ab5316 (ipv4: fix redirect handling) was backport of mainline commit 9cc20b26 from 3.2-rc3 where hh member of struct dst_entry was already gone. However, in 3.0 we still have it and we have to clean it as well, otherwise it keeps pointing to the cleaned up (and unusable) hh_cache entry and packets cannot be sent out. Signed-off-by: Michal Kubecek <mkubecek@suse.cz> Cc: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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