1
linux/drivers/s390
Julien Brunel 0983e56835 [S390] drivers/s390: Use an IS_ERR test rather than a NULL test
In case of error, functions dasd_kmalloc_request and idal_buffer_alloc
return an ERR pointer, but never return the NULL pointer. So after a
call to one of these functions, a NULL test should be replaced by an
IS_ERR test.

A simplified version of the semantic patch that makes this change is
as follows:
(http://www.emn.fr/x-info/coccinelle/)

// <smpl>
@correct_null_test@
expression x,E;
statement S1, S2;
@@
x =
(
  dasd_kmalloc_request(...)
|
  idal_buffer_alloc(...)
)
<... when != x = E
if (
(
- x@p2 != NULL
+ ! IS_ERR ( x )
|
- x@p2 == NULL
+ IS_ERR( x )
)
 )
S1
else S2
...>
? x = E;
// </smpl>

Signed-off-by:  Julien Brunel <brunel@diku.dk>
Signed-off-by:  Julia Lawall <julia@diku.dk>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2008-08-21 19:46:39 +02:00
..
block [S390] drivers/s390: Use an IS_ERR test rather than a NULL test 2008-08-21 19:46:39 +02:00
char [S390] drivers/s390: Use an IS_ERR test rather than a NULL test 2008-08-21 19:46:39 +02:00
cio [S390] qdio: fix section mismatch bug. 2008-08-01 16:39:35 +02:00
crypto Merge branch 'bkl-removal' of git://git.lwn.net/linux-2.6 2008-07-14 14:48:31 -07:00
kvm [S390] virtio console: fix section mismatch warning. 2008-08-01 16:39:35 +02:00
net [S390] qeth: avoid use of include/asm-s390 2008-08-01 16:39:36 +02:00
scsi [S390] qdio: new qdio driver. 2008-07-17 17:22:10 +02:00
ebcdic.c
Makefile s390: KVM guest: virtio device support, and kvm hypercalls 2008-04-27 12:00:51 +03:00
s390_rdev.c
s390mach.c [S390] stp support. 2008-07-14 10:02:09 +02:00
s390mach.h [S390] stp support. 2008-07-14 10:02:09 +02:00
sysinfo.c [S390] Add new fields for System z10 to /proc/sysinfo 2008-04-17 07:47:01 +02:00