journal: fix bad memory access
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@ -1300,7 +1300,7 @@ static int generic_array_bisect_plus_one(JournalFile *f,
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r = generic_array_bisect(f, first, n-1, needle, test_object, direction, ret, offset, idx);
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if (r > 0)
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if (r > 0 && idx)
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(*idx) ++;
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return r;
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