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authorStefan Haberland <stefan.haberland@de.ibm.com>2010-01-27 10:12:35 +0100
committerMartin Schwidefsky <sky@mschwide.boeblingen.de.ibm.com>2010-01-27 10:12:48 +0100
commit294001a80c9810e2fe27aaaad7df8be12a103065 (patch)
tree1615733697057a38054f68bf46109fffeeb5e549 /drivers/s390/block/dasd_proc.c
parentb04da8bfdfbbd79544cab2fadfdc12e87eb01600 (diff)
downloadlinux-294001a80c9810e2fe27aaaad7df8be12a103065.tar.bz2
[S390] dasd: fix possible NULL pointer errors
Fix possible NULL pointer in DASD messages and correct discipline checking. Signed-off-by: Stefan Haberland <stefan.haberland@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'drivers/s390/block/dasd_proc.c')
-rw-r--r--drivers/s390/block/dasd_proc.c7
1 files changed, 2 insertions, 5 deletions
diff --git a/drivers/s390/block/dasd_proc.c b/drivers/s390/block/dasd_proc.c
index 6315fbd8e68b..71f95f54866f 100644
--- a/drivers/s390/block/dasd_proc.c
+++ b/drivers/s390/block/dasd_proc.c
@@ -72,7 +72,7 @@ dasd_devices_show(struct seq_file *m, void *v)
/* Print device number. */
seq_printf(m, "%s", dev_name(&device->cdev->dev));
/* Print discipline string. */
- if (device != NULL && device->discipline != NULL)
+ if (device->discipline != NULL)
seq_printf(m, "(%s)", device->discipline->name);
else
seq_printf(m, "(none)");
@@ -92,10 +92,7 @@ dasd_devices_show(struct seq_file *m, void *v)
substr = (device->features & DASD_FEATURE_READONLY) ? "(ro)" : " ";
seq_printf(m, "%4s: ", substr);
/* Print device status information. */
- switch ((device != NULL) ? device->state : -1) {
- case -1:
- seq_printf(m, "unknown");
- break;
+ switch (device->state) {
case DASD_STATE_NEW:
seq_printf(m, "new");
break;