check return code of prepare_revision_walk
A failure in prepare_revision_walk can be caused by a not parseable object. Signed-off-by: Martin Koegler <mkoegler@auto.tuwien.ac.at> Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Junio C Hamano

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3d51e1b5b8
@ -609,7 +609,8 @@ int cmd_rev_list(int argc, const char **argv, const char *prefix)
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if (bisect_list)
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revs.limited = 1;
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prepare_revision_walk(&revs);
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if (prepare_revision_walk(&revs))
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die("revision walk setup failed");
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if (revs.tree_objects)
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mark_edges_uninteresting(revs.commits, &revs, show_edge);
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