xsk: Fix refcount warning in xp_dma_map

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Fix a potential refcount warning that a zero value is increased to one
in xp_dma_map, by initializing the refcount to one to start with,
instead of zero plus a refcount_inc().

Fixes: 921b68692a ("xsk: Enable sharing of dma mappings")
Signed-off-by: Magnus Karlsson <magnus.karlsson@intel.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Song Liu <songliubraving@fb.com>
Link: https://lore.kernel.org/bpf/1600095036-23868-1-git-send-email-magnus.karlsson@gmail.com

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Magnus Karlsson 2020-09-14 16:50:36 +02:00 • committed by Alexei Starovoitov

parent 74e00676d7

commit bf74a370eb

1 changed files with 2 additions and 2 deletions

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net/xdp/xsk_buff_pool.c

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