dz: test after postfix decrement fails in dz_console_putchar()
When loops reaches 0 the postfix decrement still subtracts, so the subsequent test fails. Signed-off-by: NRoel Kluin <12o3l@tiscali.nl> Acked-by: NMaciej W. Rozycki <macro@linux-mips.org> Cc: Johannes Weiner <hannes@saeurebad.de> Cc: <stable@kernel.org> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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