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authorChristian Borntraeger <borntraeger@de.ibm.com>2007-12-04 16:09:03 +0100
committerMartin Schwidefsky <schwidefsky@de.ibm.com>2007-12-04 16:09:57 +0100
commit436d1bc7fe6e78e37fe5f5022ea4d5c133d825eb (patch)
treed2363a3489a98a3325114a253bef4dc13be3885e /drivers/s390
parent671756162cfb0b3ccbb6a0047baa3010885561a2 (diff)
downloadop-kernel-dev-436d1bc7fe6e78e37fe5f5022ea4d5c133d825eb.zip
op-kernel-dev-436d1bc7fe6e78e37fe5f5022ea4d5c133d825eb.tar.gz
[S390] dcssblk: prevent early access without own make_request function
When loading a dcss segment with the dcssblk driver, sometimes the following kind of message appears: bio too big device dcssblk0 (8 > 0) Buffer I/O error on device dcssblk0, logical block 172016 .. The fix is to move the disk registration after setting the make_request function, to avoid calls into generic_make_request for dcssblock without having the make_request function set up properly. Cc: Gerald Schaefer <gerald.schaefer@de.ibm.com> Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'drivers/s390')
-rw-r--r--drivers/s390/block/dcssblk.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/s390/block/dcssblk.c b/drivers/s390/block/dcssblk.c
index 5e083d1..15a5789 100644
--- a/drivers/s390/block/dcssblk.c
+++ b/drivers/s390/block/dcssblk.c
@@ -472,11 +472,11 @@ dcssblk_add_store(struct device *dev, struct device_attribute *attr, const char
if (rc)
goto unregister_dev;
- add_disk(dev_info->gd);
-
blk_queue_make_request(dev_info->dcssblk_queue, dcssblk_make_request);
blk_queue_hardsect_size(dev_info->dcssblk_queue, 4096);
+ add_disk(dev_info->gd);
+
switch (dev_info->segment_type) {
case SEG_TYPE_SR:
case SEG_TYPE_ER:
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