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| author | Roel Kluin <12o3l@tiscali.nl> | 2008-04-28 11:11:50 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-04-28 17:58:16 +0200 |
| commit | 1ecf0d0cd28a4bfed3009f752061998e52d14db2 (patch) | |
| tree | dc72f443149f69eb5edbed69774248fbfc32636f /drivers/serial | |
| parent | mm: fix possible off-by-one in walk_pte_range() (diff) | |
| download | linux-1ecf0d0cd28a4bfed3009f752061998e52d14db2.tar.xz linux-1ecf0d0cd28a4bfed3009f752061998e52d14db2.zip | |
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: Roel Kluin <12o3l@tiscali.nl>
Acked-by: Maciej W. Rozycki <macro@linux-mips.org>
Cc: Johannes Weiner <hannes@saeurebad.de>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/serial')
| -rw-r--r-- | drivers/serial/dz.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/serial/dz.c b/drivers/serial/dz.c index 116211fcd36f..0dddd68b20d2 100644 --- a/drivers/serial/dz.c +++ b/drivers/serial/dz.c @@ -819,7 +819,7 @@ static void dz_console_putchar(struct uart_port *uport, int ch) dz_out(dport, DZ_TCR, mask); iob(); udelay(2); - } while (loops--); + } while (--loops); if (loops) /* Cannot send otherwise. */ dz_out(dport, DZ_TDR, ch); |