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| author | Johannes Thumshirn <jthumshirn@suse.de> | 2016-07-06 10:51:50 +0300 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2016-07-15 21:59:03 +0300 |
| commit | ef8d1d51aa5ebe4b17b5e837d520df1e398b7adb (patch) | |
| tree | 31c8f5f18803e25b7098a6b1cf895204d5bce344 /tools/perf/scripts/python/call-graph-from-postgresql.py | |
| parent | cb05cbb389cd162db2d79e82ffaacc2451296ec2 (diff) | |
| download | linux-ef8d1d51aa5ebe4b17b5e837d520df1e398b7adb.tar.xz | |
qla2xxx: setup data needed in ISR before setting up the ISR
qla2xxx first calls request_irq() and then does the setup of the queue
entry data needed in the interrupt handlers in when using MSI-X. This
could lead to a NULL pointer dereference when an IRQ fires between the
request_irq() call and the assignment of the qentry data structure to
the rsp->msix field. A possible case for such a race would be in the
kdump case when the HBA's IRQs are still enabled but the driver is
undergoing a new initialisation and thus is not aware of already
activated IRQs in the HBA.
Signed-off-by: Johannes Thumshirn <jthumshirn@suse.de>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Himanshu Madhani <himanshu.madhani@qlogic.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'tools/perf/scripts/python/call-graph-from-postgresql.py')
0 files changed, 0 insertions, 0 deletions