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authorSebastian Ott <sebott@linux.vnet.ibm.com>2017-06-10 14:10:00 +0200
committerMartin Schwidefsky <schwidefsky@de.ibm.com>2017-06-28 07:32:09 +0200
commit725708349172f00b86e2bac5c03de360b79aaf65 (patch)
treebd2186c9804f0ee65849bc155a5ed8e1f44d5f90 /arch/s390/pci/Makefile
parent4dfbd3efe3f0cf9ff1325b87491e1b1fe07afaf1 (diff)
s390/pci: improve unreg_ioat error handling
DMA tables are freed in zpci_dma_exit_device regardless of the return code of zpci_unregister_ioat. This could lead to a use after free. On the other hand during function hot-unplug, zpci_unregister_ioat will always fail since the function is already gone. So let zpci_unregister_ioat report success when the function is gone but don't cleanup the dma table when a function could still have it in access. Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com> Reviewed-by: Gerald Schaefer <gerald.schaefer@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390/pci/Makefile')
0 files changed, 0 insertions, 0 deletions