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authorLinus Torvalds <torvalds@linux-foundation.org>2010-02-27 16:20:17 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2010-02-27 16:20:17 -0800
commit7981164791d18d5ed1dcdfa9598949ed158a5333 (patch)
tree6565e7406dd55eb5014efd3e54109159a47cb10e /drivers/s390/block/dasd_devmap.c
parentf1dd6ad599732fc89f36fdd65a2c2cf3c63a8711 (diff)
parenta8d6356cdabf4495aaae7d3e89eb058b1909761c (diff)
Merge branch 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6
* 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6: (35 commits) [S390] time: remove unused code [S390] zcore: Add prefix registers to dump header [S390] correct vdso version string [S390] add support for compressed kernels [S390] Define new s390 ELF note sections in elf.h [S390] codepage conversion of kernel parameter line [S390] seq_file: convert drivers/s390/ [S390] add z9-ec/z10 instruction to kernel disassembler [S390] dasd: correct offline processing [S390] dasd: fix refcounting. [S390] dasd: fix online/offline race [S390] use kprobes_built_in() in mm/fault code [S390] bug: use relative pointers in bug table entries [S390] Cleanup struct _lowcore usage and defines. [S390] free_initmem: reduce code duplication [S390] Replace ENOTSUPP usage with EOPNOTSUPP [S390] spinlock: check virtual cpu running status [S390] sysinfo: fix SYSIB 3,2,2 structure [S390] add MACHINE_IS_LPAR flag [S390] qdio: optimize cache line usage of struct qdio_irq ...
Diffstat (limited to 'drivers/s390/block/dasd_devmap.c')
-rw-r--r--drivers/s390/block/dasd_devmap.c13
1 files changed, 10 insertions, 3 deletions
diff --git a/drivers/s390/block/dasd_devmap.c b/drivers/s390/block/dasd_devmap.c
index 4cac5b54f26..d49766f3b94 100644
--- a/drivers/s390/block/dasd_devmap.c
+++ b/drivers/s390/block/dasd_devmap.c
@@ -874,12 +874,19 @@ dasd_discipline_show(struct device *dev, struct device_attribute *attr,
ssize_t len;
device = dasd_device_from_cdev(to_ccwdev(dev));
- if (!IS_ERR(device) && device->discipline) {
+ if (IS_ERR(device))
+ goto out;
+ else if (!device->discipline) {
+ dasd_put_device(device);
+ goto out;
+ } else {
len = snprintf(buf, PAGE_SIZE, "%s\n",
device->discipline->name);
dasd_put_device(device);
- } else
- len = snprintf(buf, PAGE_SIZE, "none\n");
+ return len;
+ }
+out:
+ len = snprintf(buf, PAGE_SIZE, "none\n");
return len;
}