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(parent: 8dc7243) | patch
ptr_ring: support zero length ring
authorJason Wang <jasowang@redhat.com>
Thu, 30 Jun 2016 06:45:31 +0000 (14:45 +0800)
committerDavid S. Miller <davem@davemloft.net>
Fri, 1 Jul 2016 09:32:16 +0000 (05:32 -0400)
commit982fb490c298896d15e9323a882f34a57c11ff56
tree453a3c8afc504c726462412c5b61cb90785c1069tree | snapshot
parent8dc7243abbf514e208aee1c0b430f35b866f8cc4commit | diff
ptr_ring: support zero length ring

Sometimes, we need zero length ring. But current code will crash since
we don't do any check before accessing the ring. This patch fixes this.

Signed-off-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
include/linux/ptr_ring.h diff | blob | history
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