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s390/ccwgroup: Fix memory corruption

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commit 0b60f9ead5 (s390: use
device_remove_file_self() instead of device_schedule_callback())

caused random memory corruption on my s390 box. Turns out that the
last element of the ccwgroup structure is of dynamic size, so we
must move the newly introduced work structure _before_ the zero
length array.

Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
CC: Tejun Heo <tj@kernel.org>
CC: Martin Schwidefsky <schwidefsky@de.ibm.com>
CC: Heiko Carstens <heiko.carstens@de.ibm.com>
CC: Sebastian Ott <sebott@linux.vnet.ibm.com>
CC: Peter Oberparleiter <oberpar@linux.vnet.ibm.com>
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Christian Borntraeger 2014-04-23 20:58:45 +02:00 committed by Greg Kroah-Hartman
parent b44b214026
commit 0c8c77d355
1 changed files with 1 additions and 1 deletions
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2
arch/s390/include/asm/ccwgroup.h
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@ -22,8 +22,8 @@ struct ccwgroup_device {
/* public: */
unsigned int count;
struct device dev;
struct ccw_device *cdev[0];
struct work_struct ungroup_work;
struct ccw_device *cdev[0];
};
/**