ui-log: handle parse_commit() errors

If parse_commit() fails, none of the fields in the commit structure will
have been populated so we will dereference NULL when accessing
item->tree.

There isn't much we can do about the error at this point, but if we
return true then we'll try parsing the commit again from print_commit()
and we can report an error to the user at that point.

Coverity-id: 13801
Signed-off-by: John Keeping <john@keeping.me.uk>
这个提交包含在:
John Keeping 2016-01-16 11:03:05 +00:00 提交者 Jason A. Donenfeld
父节点 e64d5e04c3
当前提交 baa5ad1f80

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@ -141,7 +141,9 @@ static int show_commit(struct commit *commit, struct rev_info *revs)
/* When we get here we have precisely one parent. */
parent = parents->item;
parse_commit(parent);
/* If we can't parse the commit, let print_commit() report an error. */
if (parse_commit(parent))
return 1;
files = 0;
add_lines = 0;