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be3bb83dab
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. Acked-by: Yonghong Song <yhs@fb.com> Signed-off-by: Hao Luo <haoluo@google.com> Link: https://lore.kernel.org/r/20220805214821.1058337-4-haoluo@google.com Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.