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alistair23-linux/drivers/s390/char
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Julia Lawall 3ca1c9907a [S390] drivers/s390: Eliminate NULL test and memset after alloc_bootmem 
As noted by Akinobu Mita in patch b1fceac2b9,
alloc_bootmem and related functions never return NULL and always return a
zeroed region of memory.  Thus a NULL test or memset after calls to these
functions is unnecessary.

 drivers/s390/char/raw3270.c  |   11 +----------
 drivers/s390/char/sclp_con.c |    2 --
 2 files changed, 1 insertion(+), 12 deletions(-)

This was fixed using the following semantic patch.
(http://www.emn.fr/x-info/coccinelle/)

// <smpl>
@@
expression E;
statement S;
@@

E = \(alloc_bootmem\|alloc_bootmem_low\|alloc_bootmem_pages\|alloc_bootmem_low_pages\)(...)
... when != E
(
- BUG_ON (E == NULL);
|
- if (E == NULL) S
)

@@
expression E,E1;
@@

E = \(alloc_bootmem\|alloc_bootmem_low\|alloc_bootmem_pages\|alloc_bootmem_low_pages\)(...)
... when != E
- memset(E,0,E1);
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
 		2008-07-14 10:02:15 +02:00
..
Kconfig [S390] sclp: kill unused SCLP config option. 2007-07-27 12:29:18 +02:00
Makefile [S390] sclp: convert channel path configure code to use sync interface. 2008-01-26 14:11:10 +01:00
con3215.c [S390] cio: introduce fcx enabled scsw format 2008-07-14 10:02:07 +02:00
con3270.c [S390] cio: introduce fcx enabled scsw format 2008-07-14 10:02:07 +02:00
ctrlchar.c [S390] workqueue fixes. 2006-12-08 15:53:52 +01:00
ctrlchar.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
defkeymap.c Build fix for drivers/s390/char/defkeymap.c 2008-03-04 08:01:26 -08:00
defkeymap.map Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
fs3270.c [S390] cio: introduce fcx enabled scsw format 2008-07-14 10:02:07 +02:00
keyboard.c unicode diacritics support 2007-10-17 08:42:52 -07:00
keyboard.h unicode diacritics support 2007-10-17 08:42:52 -07:00
monreader.c [S390] Remove code duplication from monreader / dcssblk. 2008-04-17 07:47:07 +02:00
monwriter.c [S390] drivers/s390: Add missing "space" 2008-01-26 14:11:19 +01:00
raw3270.c [S390] drivers/s390: Eliminate NULL test and memset after alloc_bootmem 2008-07-14 10:02:15 +02:00
raw3270.h [S390] Fix sparse warnings. 2006-07-12 16:41:55 +02:00
sclp.c [S390] sclp: keep facility mask up to date. 2008-07-14 10:02:00 +02:00
sclp.h [S390] sclp: clean up send/receive naming scheme 2008-02-19 15:29:34 +01:00
sclp_cmd.c [S390] Get rid of additional_cpus kernel parameter. 2008-01-26 14:11:15 +01:00
sclp_con.c [S390] drivers/s390: Eliminate NULL test and memset after alloc_bootmem 2008-07-14 10:02:15 +02:00
sclp_config.c [S390] sclp: fix possible deadlock on cpu rescan. 2008-07-14 10:02:01 +02:00
sclp_cpi.c [S390] sclp: sysfs interface for SCLP cpi 2008-01-26 14:11:08 +01:00
sclp_cpi_sys.c [S390] cio: Use locks when accessing /sys/firmware/cpi data. 2008-07-14 10:01:59 +02:00
sclp_cpi_sys.h [S390] sclp: sysfs interface for SCLP cpi 2008-01-26 14:11:08 +01:00
sclp_quiesce.c [S390] sclp: fix coding style. 2007-04-27 16:01:45 +02:00
sclp_rw.c [S390] sclp: clean up send/receive naming scheme 2008-02-19 15:29:34 +01:00
sclp_rw.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
sclp_sdias.c [S390] Avoid sparse warnings. 2007-05-10 15:45:52 +02:00
sclp_tty.c s390 tty: Prepare for put_char to return success/fail 2008-04-30 08:29:45 -07:00
sclp_tty.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
sclp_vt220.c [S390] sclp: simplify vt220 cleanup logic 2008-07-14 10:02:13 +02:00
tape.h [S390] tape: fix race with stack local wait_queue_head_t. 2008-05-30 10:03:36 +02:00
tape_34xx.c [S390] cio: introduce fcx enabled scsw format 2008-07-14 10:02:07 +02:00
tape_3590.c [S390] cio: introduce fcx enabled scsw format 2008-07-14 10:02:07 +02:00
tape_3590.h [S390] tape: New read configuration data. 2007-05-04 18:48:26 +02:00
tape_block.c [S390] tape: Fix race condition in tape block device driver 2008-05-30 10:03:33 +02:00
tape_char.c [S390] tape: duplicate sysfs filename when setting tape device online 2008-04-17 07:46:59 +02:00
tape_class.c [S390] tape: duplicate sysfs filename when setting tape device online 2008-04-17 07:46:59 +02:00
tape_class.h [S390] tape: duplicate sysfs filename when setting tape device online 2008-04-17 07:46:59 +02:00
tape_core.c [S390] cio: introduce fcx enabled scsw format 2008-07-14 10:02:07 +02:00
tape_proc.c s390: use non-racy method for proc entries creation 2008-04-29 08:06:21 -07:00
tape_std.c [S390] tape: Compression overwrites crypto setting 2007-03-05 23:35:47 +01:00
tape_std.h [PATCH] s390: tape 3590 changes 2006-04-28 08:33:48 -07:00
tty3270.c [S390] cio: introduce fcx enabled scsw format 2008-07-14 10:02:07 +02:00
tty3270.h [S390] Get rid of a bunch of sparse warnings again. 2007-10-12 16:13:06 +02:00
vmcp.c [S390] vmcp cleanup 2007-07-17 13:36:19 +02:00
vmcp.h [S390] vmcp cleanup 2007-07-17 13:36:19 +02:00
vmlogrdr.c s390: fix race in device_create 2008-05-20 13:31:56 -07:00
vmur.c [S390] cio: introduce fcx enabled scsw format 2008-07-14 10:02:07 +02:00
vmur.h [S390] vmur: Use wait queue instead of mutex to serialize open 2008-04-17 07:46:59 +02:00
vmwatchdog.c [S390] replace remaining __FUNCTION__ occurrences 2008-04-17 07:47:04 +02:00
zcore.c [S390] replace remaining __FUNCTION__ occurrences 2008-04-17 07:47:04 +02:00