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authorStefan Weinhuber <wein@de.ibm.com>2008-02-19 09:29:27 -0500
committerMartin Schwidefsky <schwidefsky@de.ibm.com>2008-02-19 09:29:33 -0500
commit03513bccad33667ed738cfd96dc5757e539e0bdb (patch)
treefd6d91ac38deb371bb29b567894056a8c8f9e4e0 /drivers/s390/s390mach.c
parent11ab244c9faead91683a12e4cb10d26b279bb4aa (diff)
[S390] dasd: fix locking in __dasd_device_process_final_queue
After setting the status of the cqr and releasing the lock for the block cqr queue, we call the cqr callback function, which will usually just trigger the dasd_block_tasklet. But when the tasklet is already running the cqr might be processed before we invoke the callback function. In rare cases the callback pointer may already be invalid by the time we want to call it, which will result in a panic. Solution: Call the callback function first and then release the lock. Signed-off-by: Stefan Weinhuber <wein@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'drivers/s390/s390mach.c')
0 files changed, 0 insertions, 0 deletions