android_kernel_xiaomi_sm8350/drivers
Roel Kluin 52e3632ea6 serial: fix off by one errors
In zs_console_putchar() occurs:

	if (zs_transmit_drain(zport, irq))
		write_zsdata(zport, ch);

However if in zs_transmit_drain() no empty Tx Buffer occurs, limit reaches
-1 => true, and the write still occurs.

This patch changes postfix to prefix decrements in this and similar
functions to prevent similar mistakes in the future.  This decreases the
iterations with one but the chosen loop count was arbitrary anyway.

In sunhv limit reaches -1, not 0, so the test is off by one.

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Acked-by: David S. Miller <davem@davemloft.net>
Acked-by: Maciej W. Rozycki <macro@linux-mips.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-06-22 11:32:23 -07:00
..
accessibility
acpi
amba
ata powerpc/5xxx: Add common mpc5xxx_get_bus_frequency() function 2009-06-17 00:30:22 -06:00
atm
auxdisplay
base Merge branch 'akpm' 2009-06-16 19:50:13 -07:00
block hd: stop defining MAJOR_NR 2009-06-18 09:56:20 +02:00
bluetooth
cdrom
char bfin_jtag_comm: clean up printk usage 2009-06-22 11:32:23 -07:00
clocksource Merge branches 'sh/pci-express-integration', 'sh/rsk-updates', 'sh/platform-updates' and 'sh/perf_counter' 2009-06-17 16:37:26 +09:00
connector
cpufreq
cpuidle
crypto crypto: padlock-aes - work around Nano CPU errata in CBC mode 2009-06-18 19:31:09 +08:00
dca
dio
dma DMA: TXx9 Soc DMA Controller driver 2009-06-17 11:06:25 +01:00
edac edac: Kconfig: fix the meaning of EDAC abbreviation 2009-06-18 13:03:57 -07:00
eisa Merge branch 'akpm' 2009-06-16 19:50:13 -07:00
firewire Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6 2009-06-16 14:29:46 -07:00
firmware Pull for-2.6.31 into release 2009-06-17 09:35:24 -07:00
gpio gpio: driver for PrimeCell PL061 GPIO controller 2009-06-19 16:46:03 -07:00
gpu drm/i915: enable GEM on PAE. 2009-06-19 10:29:20 +10:00
hid
hwmon Merge branch 'akpm' 2009-06-16 19:50:13 -07:00
i2c Merge branch 'i2c-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging 2009-06-19 17:45:51 -07:00
ide Merge branch 'for-2.6.31' of git://git.kernel.org/pub/scm/linux/kernel/git/bart/ide-2.6 2009-06-20 10:11:11 -07:00
idle
ieee1394
ieee802154
infiniband
input Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input 2009-06-20 10:17:02 -07:00
isdn net: fix network drivers ndo_start_xmit() return values 2009-06-17 04:31:16 -07:00
leds
lguest
macintosh
mca
md Merge branch 'for-linus' of git://git.kernel.dk/linux-2.6-block 2009-06-19 17:43:04 -07:00
media soc-camera: unify i2c camera device platform data 2009-06-17 16:22:34 +09:00
memstick
message convert some DMA_nnBIT_MASK() callers 2009-06-19 16:46:06 -07:00
mfd Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input 2009-06-20 10:17:02 -07:00
misc gru: copyright fixes 2009-06-18 13:04:04 -07:00
mmc sdhci: remove needless double parenthesis 2009-06-21 21:01:00 +02:00
mtd Merge branch 'linux-next' of git://git.infradead.org/ubi-2.6 2009-06-17 09:48:30 -07:00
net Merge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc 2009-06-19 17:40:40 -07:00
nubus
of
oprofile
parisc
parport parport_pc: set properly the dma_mask for parport_pc device 2009-06-22 11:29:00 -07:00
pci Fix pci_claim_resource 2009-06-17 14:04:42 -07:00
pcmcia Merge branch 'akpm' 2009-06-16 19:50:13 -07:00
platform
pnp
power
pps LinuxPPS: core support 2009-06-18 13:04:04 -07:00
ps3
rapidio
regulator
rtc rtc: make rtc_update_irq callable with irqs enabled 2009-06-19 16:46:05 -07:00
s390 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6 2009-06-18 14:07:15 -07:00
sbus
scsi Merge commit 'origin/master' into next 2009-06-18 11:16:55 +10:00
serial serial: fix off by one errors 2009-06-22 11:32:23 -07:00
sh
sn
spi spi_mpc8xxx: s/83xx/8xxx/g 2009-06-19 16:46:05 -07:00
ssb
staging Staging: comedi: fix build errors 2009-06-19 11:04:32 -07:00
tc
telephony
thermal
uio
usb Merge commit 'origin/master' into next 2009-06-18 11:16:55 +10:00
uwb
video Merge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc 2009-06-19 17:40:40 -07:00
virtio
vlynq drivers: add support for the TI VLYNQ bus 2009-06-16 19:47:52 -07:00
w1 w1-gpio: add external pull-up enable callback 2009-06-18 13:03:58 -07:00
watchdog Merge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc 2009-06-19 17:40:40 -07:00
xen
zorro
Kconfig LinuxPPS: core support 2009-06-18 13:04:04 -07:00
Makefile LinuxPPS: core support 2009-06-18 13:04:04 -07:00