Re: [PATCH bpf-next v2 3/8] bpf, iter: Fix the condition on p when calling stop.

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On 6/10/22 12:44 PM, Yosry Ahmed wrote:
From: Hao Luo <haoluo@xxxxxxxxxx>

In bpf_seq_read, seq->op->next() could return an ERR and jump to
the label stop. However, the existing code in stop does not handle
the case when p (returned from next()) is an ERR. Adds the handling
of ERR of p by converting p into an error and jumping to done.

Because all the current implementations do not have a case that
returns ERR from next(), so this patch doesn't have behavior changes
right now.

Signed-off-by: Hao Luo <haoluo@xxxxxxxxxx>
Signed-off-by: Yosry Ahmed <yosryahmed@xxxxxxxxxx>

Acked-by: Yonghong Song <yhs@xxxxxx>



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