AcoSail/kernel_optimize_test
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c0d861afa5
kernel_optimize_test/drivers
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Julia Lawall c0d861afa5 drivers/video/backlight/da903x.c: introduce missing kfree 
Error handling code following a kzalloc should free the allocated data.

The semantic match that finds the problem is as follows:
(http://www.emn.fr/x-info/coccinelle/)

// <smpl>
@r exists@
local idexpression x;
statement S;
expression E;
identifier f,l;
position p1,p2;
expression *ptr != NULL;
@@

(
if ((x@p1 = \(kmalloc\|kzalloc\|kcalloc\)(...)) == NULL) S
|
x@p1 = \(kmalloc\|kzalloc\|kcalloc\)(...);
...
if (x == NULL) S
)
<... when != x
     when != if (...) { <+...x...+> }
x->f = E
...>
(
 return \(0\|<+...x...+>\|ptr\);
|
 return@p2 ...;
)

@script:python@
p1 << r.p1;
p2 << r.p2;
@@

print "* file: %s kmalloc %s return %s" % (p1[0].file,p1[0].line,p2[0].line)
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Cc: Mike Rapoport <mike@compulab.co.il>
Cc: Richard Purdie <rpurdie@linux.intel.com>
Cc: Eric Miao <eric.miao@marvell.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-11-19 18:49:59 -08:00
..
accessibility
acpi acpi: fix oops in acpi_system_wakeup_device_seq_show 2008-11-16 10:09:34 -08:00
amba
ata libata: improve phantom device detection 2008-11-14 18:51:57 -05:00
atm
auxdisplay
base
block Release old elevator on change elevator 2008-11-18 15:08:56 +01:00
bluetooth
cdrom
char Merge branch 'doc-subdirs' of git://git.kernel.org/pub/scm/linux/kernel/git/rdunlap/linux-docs 2008-11-15 11:51:03 -08:00
clocksource
connector
cpufreq
cpuidle regression: disable timer peek-ahead for 2.6.28 2008-11-09 16:28:42 -08:00
crypto
dca [4/4] dca: fixup initialization dependency 2008-11-10 15:01:03 -08:00
dio
dma dmaengine: struct device - replace bus_id with dev_name(), dev_set_name() 2008-11-11 13:12:33 -07:00
edac i5000-edac: hold reference to mci kobject 2008-11-12 17:17:16 -08:00
eisa
firewire
firmware trivial: dmi_scan typo 2008-11-07 08:25:43 -08:00
gpio gpiolib: extend gpio label column width in debugfs file 2008-11-19 18:49:57 -08:00
gpu drm/i915: Move legacy breadcrumb out of the reserved status page area 2008-11-11 18:03:28 +10:00
hid HID: don't grab devices with no input 2008-11-14 14:10:01 +01:00
hwmon hwmon: applesmc: Add support for iMac 6 2008-11-19 18:49:57 -08:00
i2c i2c: fix i2c-sh_mobile rx underrun 2008-11-13 15:37:07 +09:00
ide Merge git://git.kernel.org/pub/scm/linux/kernel/git/brodo/pcmcia-2.6 2008-11-15 18:58:37 -08:00
idle
ieee1394 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6 2008-11-06 15:55:34 -08:00
infiniband Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband 2008-11-12 10:56:31 -08:00
input
isdn isdn: remove extra byteswap in isdn_net_ciscohdlck_slarp_send_reply 2008-11-16 23:03:45 -08:00
leds
lguest
macintosh
mca
md dm: avoid destroying table in dm_any_congested 2008-11-13 23:39:14 +00:00
media V4L/DVB (9624): CVE-2008-5033: fix OOPS on tvaudio when controlling bass/treble 2008-11-14 14:39:47 -02:00
memstick
message trivial: MPT fusion - remove long dead code 2008-11-07 08:25:43 -08:00
mfd mfd: Correct WM8350 I2C return code usage 2008-11-16 19:58:47 +01:00
misc GRU: fix for debug option 2008-11-19 18:49:57 -08:00
mmc mmc: struct device - replace bus_id with dev_name(), dev_set_name() 2008-11-08 21:37:46 +01:00
mtd [ARM] cdb89712: avoid namespace clashes with SRAM_ and BOOTROM_ constants 2008-11-13 15:05:03 +00:00
net Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6 2008-11-17 07:53:25 -08:00
nubus
of
oprofile
parisc
parport Parport driver: disable pc-style parport on Blackfin systems 2008-11-18 08:10:08 -08:00
pci PCI: ignore bit0 of _OSC return code 2008-11-11 13:33:05 -08:00
pcmcia pcmcia: ensure correct logging in do_io_probe 2008-11-09 21:47:47 +01:00
pnp drivers: remove duplicated #include 2008-11-04 08:18:19 -08:00
power
ps3 powerpc/ps3: Fix compile error in ps3-lpm.c 2008-11-05 19:59:08 +11:00
rapidio
regulator regulator: Use menuconfig in Kconfig 2008-11-09 14:49:23 +00:00
rtc Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6 2008-11-17 07:54:47 -08:00
s390 Merge branch 'for-linus' of git://git390.osdl.marist.edu/pub/scm/linux-2.6 2008-11-15 11:38:02 -08:00
sbus drivers: remove duplicated #include 2008-11-04 08:18:19 -08:00
scsi [SCSI] dpt_i2o: fix transferred data length for scsi_set_resid() 2008-11-15 11:10:14 -06:00
serial serial: sh-sci: Reorder the SCxTDR write after the TDxE clear. 2008-11-13 17:46:06 +09:00
sh
sn
spi spi_imx: full duplex dma corruption bugfix 2008-11-19 18:49:58 -08:00
ssb SSB: hide empty sub menu 2008-11-10 13:50:17 -08:00
staging Don't ask twice about not including staging drivers 2008-11-09 12:47:04 -08:00
tc
telephony telephony: trivial: fix up email address 2008-11-11 09:30:23 -08:00
thermal
uio
usb USB: gadget: cdc-acm deadlock fix 2008-11-13 14:45:06 -08:00
uwb
video drivers/video/backlight/da903x.c: introduce missing kfree 2008-11-19 18:49:59 -08:00
virtio
w1 hdq: bQ27000 HDQ Slave Interface Driver 2008-11-12 17:17:18 -08:00
watchdog Merge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc 2008-11-11 09:24:31 -08:00
xen drivers: remove duplicated #include 2008-11-04 08:18:19 -08:00
zorro
Kconfig
Makefile