Hi,
This is set of independent patches. The only connection between
them is that they try to address problems spotted by proposed
coccinelle semantic patch unsigned_lesser_than_zero.cocci[1].
Semantic patch finds comparisons of types:
unsigned < 0
unsigned >= 0
The former is always false, the latter is always true.
Such comparisons are useless, so theoretically they could be
safely removed, but their presence quite often indicates bugs.
This patchset contains mainly real bug fixes(patches 01-25),
usually type fixes.
Patches 26-37 removes unnecessary checks. Semantic patch found
much more such places (more than 80), but since every case needs
some analysis I have decided to leave them for antoher patchset.
The last patch should be probably replaced with something better,
I guess it should be treated rather as bug report.
The patches are based on linux-next (20150918).
Patches were only compile tested, so please look at them carefully.
I have sent all patches to linux-kernel mailing list. Individual
patches + cover letter went also to apropriate addresses,
according to get_maintainers.pl script.
One more thing. To fullfill different maintaner/subsystem requirements
I have decided to prefix patch subjects with prefixes present in
last 10 commits for affected files. I am not sure if this is the
best solution, if there are any better solutions please let me know :)
[1]: http://permalink.gmane.org/gmane.linux.kernel/2038576
Regards
Andrzej
Andrzej Hajda (38):
arm-cci: fix handling cpumask_any_but return value
bus: arm-ccn: fix handling cpumask_any_but return value
drm/i915: fix handling gen8_emit_flush_coherentl3_wa result
IB/ehca: fix handling idr_alloc result
staging: lustre: fix handling lustre_posix_acl_xattr_filter result
tty: serial: lpc32xx_hs: fix handling platform_get_irq result
usb: host: ehci-msm: fix handling platform_get_irq result
openvswitch: fix handling result of ipv6_skip_exthdr
selftests/timers: fix write return value handlng
hwrng: fix handling platform_get_irq
HSI: omap_ssi: fix handling ida_simple_get result
HSI: omap_ssi_port: fix handling of_get_named_gpio result
ARM: shmobile: apmu: correct type of CPU id
clk: vt8500: fix sign of possible PLL values
drm/layerscape: fix handling fsl_dcu_drm_plane_index result
gpu: ipu-v3: fix div_ratio type
isdn: hisax: fix frame calculation
net/ibm/emac: fix type of phy_mode
net: stmmac: fix type of entry variable
net: brcm80211: fix range check
mwifiex: fix comparison expression
orinoco: fix checking for default value
rndis_wlan: fix checking for default value
rtc: opal: fix type of token
staging: media: davinci_vpfe: fix ipipe_mode type
staging: lustre: remove invalid check
usbnet: remove invalid check
video/omap: remove invalid check
Input: touchscreen: atmel: remove invalid check
leds: flash: remove invalid check
leds: tca6507: remove invalid check
fs/cachefiles: remove invalid checks
mm/memblock.c: remove invalid check
perf: remove invalid check
ptrace: remove invalid check
MIPS: remove invalid check
zlib_deflate/deftree: change always true condition to 1
drm/radeon: simplify boot level calculation
arch/arm/mach-shmobile/platsmp-apmu.c | 2 +-
arch/mips/mm/sc-mips.c | 4 ++--
arch/sh/kernel/ptrace_32.c | 3 +--
arch/sh/kernel/ptrace_64.c | 4 ++--
drivers/bus/arm-cci.c | 2 +-
drivers/bus/arm-ccn.c | 2 +-
drivers/char/hw_random/xgene-rng.c | 7 ++++---
drivers/clk/clk-vt8500.c | 6 +++---
drivers/gpu/drm/amd/amdgpu/kv_dpm.c | 11 +----------
drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_plane.c | 3 ++-
drivers/gpu/drm/i915/intel_lrc.c | 7 ++++---
drivers/gpu/drm/radeon/kv_dpm.c | 11 +----------
drivers/gpu/ipu-v3/ipu-csi.c | 2 +-
drivers/hsi/controllers/omap_ssi.c | 7 +++----
drivers/hsi/controllers/omap_ssi_port.c | 8 ++++----
drivers/input/touchscreen/atmel_mxt_ts.c | 2 +-
drivers/isdn/hisax/hfc4s8s_l1.c | 10 +++++-----
drivers/leds/led-class-flash.c | 2 +-
drivers/leds/leds-tca6507.c | 2 +-
drivers/net/ethernet/ibm/emac/core.h | 2 +-
drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 2 +-
drivers/net/usb/lan78xx.c | 5 -----
drivers/net/usb/smsc75xx.c | 5 -----
drivers/net/usb/smsc95xx.c | 5 -----
drivers/net/wireless/brcm80211/brcmsmac/main.c | 2 +-
drivers/net/wireless/mwifiex/11n_rxreorder.c | 4 ++--
drivers/net/wireless/orinoco/cfg.c | 6 +++---
drivers/net/wireless/rndis_wlan.c | 2 +-
drivers/rtc/rtc-opal.c | 4 ++--
drivers/staging/lustre/lustre/llite/xattr.c | 7 ++++---
drivers/staging/lustre/lustre/osc/lproc_osc.c | 3 ---
drivers/staging/media/davinci_vpfe/dm365_ipipe_hw.c | 2 +-
drivers/staging/rdma/ehca/ehca_cq.c | 13 +++++++------
drivers/tty/serial/lpc32xx_hs.c | 7 ++++---
drivers/usb/host/ehci-msm.c | 6 +++---
drivers/video/fbdev/omap/omapfb_main.c | 5 -----
fs/cachefiles/bind.c | 9 +++------
fs/cachefiles/daemon.c | 6 +++---
lib/zlib_deflate/deftree.c | 2 +-
mm/memblock.c | 2 +-
net/openvswitch/conntrack.c | 2 +-
tools/testing/selftests/timers/clocksource-switch.c | 2 +-
42 files changed, 79 insertions(+), 119 deletions(-)
--
1.9.1
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