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Stephan Bergmann yazdı
...regardless of the details of the type of aParams.format, SANE_Frame, which the SANE documentation at <http://sane.alioth.debian.org/html/doc012.html> is vague about. (It could, e.g., validly have negative values in an implementation where SANE_Frame is an enum with additional, negative enumerators besides the required SAN_FRAME_GRAY...BLUE.) Before 2687a5ac "-Werror,-Wtautological-compare with latest clang" the code had explicitly checked for aParams.format < 0. Change-Id: Ie2a19e67e942841c5a52b862cb427bac77d6ebb2
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