diff options
Diffstat (limited to 'drivers/serial')
| -rw-r--r-- | drivers/serial/sb1250-duart.c | 6 | ||||
| -rw-r--r-- | drivers/serial/sunhv.c | 2 | ||||
| -rw-r--r-- | drivers/serial/zs.c | 6 |
3 files changed, 7 insertions, 7 deletions
diff --git a/drivers/serial/sb1250-duart.c b/drivers/serial/sb1250-duart.c index a4fb343a08da..319e8b83f6be 100644 --- a/drivers/serial/sb1250-duart.c +++ b/drivers/serial/sb1250-duart.c @@ -204,7 +204,7 @@ static int sbd_receive_drain(struct sbd_port *sport) { int loops = 10000; - while (sbd_receive_ready(sport) && loops--) + while (sbd_receive_ready(sport) && --loops) read_sbdchn(sport, R_DUART_RX_HOLD); return loops; } @@ -218,7 +218,7 @@ static int __maybe_unused sbd_transmit_drain(struct sbd_port *sport) { int loops = 10000; - while (!sbd_transmit_ready(sport) && loops--) + while (!sbd_transmit_ready(sport) && --loops) udelay(2); return loops; } @@ -232,7 +232,7 @@ static int sbd_line_drain(struct sbd_port *sport) { int loops = 10000; - while (!sbd_transmit_empty(sport) && loops--) + while (!sbd_transmit_empty(sport) && --loops) udelay(2); return loops; } diff --git a/drivers/serial/sunhv.c b/drivers/serial/sunhv.c index a94a2ab4b571..1df5325faab2 100644 --- a/drivers/serial/sunhv.c +++ b/drivers/serial/sunhv.c @@ -461,7 +461,7 @@ static void sunhv_console_write_paged(struct console *con, const char *s, unsign break; udelay(1); } - if (limit <= 0) + if (limit < 0) break; page_bytes -= written; ra += written; diff --git a/drivers/serial/zs.c b/drivers/serial/zs.c index 9e6a873f8203..d8c2809b1ab6 100644 --- a/drivers/serial/zs.c +++ b/drivers/serial/zs.c @@ -231,7 +231,7 @@ static int zs_receive_drain(struct zs_port *zport) { int loops = 10000; - while ((read_zsreg(zport, R0) & Rx_CH_AV) && loops--) + while ((read_zsreg(zport, R0) & Rx_CH_AV) && --loops) read_zsdata(zport); return loops; } @@ -241,7 +241,7 @@ static int zs_transmit_drain(struct zs_port *zport, int irq) struct zs_scc *scc = zport->scc; int loops = 10000; - while (!(read_zsreg(zport, R0) & Tx_BUF_EMP) && loops--) { + while (!(read_zsreg(zport, R0) & Tx_BUF_EMP) && --loops) { zs_spin_unlock_cond_irq(&scc->zlock, irq); udelay(2); zs_spin_lock_cond_irq(&scc->zlock, irq); @@ -254,7 +254,7 @@ static int zs_line_drain(struct zs_port *zport, int irq) struct zs_scc *scc = zport->scc; int loops = 10000; - while (!(read_zsreg(zport, R1) & ALL_SNT) && loops--) { + while (!(read_zsreg(zport, R1) & ALL_SNT) && --loops) { zs_spin_unlock_cond_irq(&scc->zlock, irq); udelay(2); zs_spin_lock_cond_irq(&scc->zlock, irq); |