net: ll_temac: Fix TX BD buffer overwrite
Just as the initial check, we need to ensure num_frag+1 buffers available, as that is the number of buffers we are going to use. This fixes a buffer overflow, which might be seen during heavy network load. Complete lockup of TEMAC was reproducible within about 10 minutes of a particular load. Fixes: 84823ff8 ("net: ll_temac: Fix race condition causing TX hang") Cc: stable@vger.kernel.org # v5.4+ Signed-off-by:Esben Haabendal <esben@geanix.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
parent
28d9fab4