diff options
| author | Dan Williams <[email protected]> | 2019-06-13 15:56:24 -0700 |
|---|---|---|
| committer | Linus Torvalds <[email protected]> | 2019-06-13 17:34:56 -1000 |
| commit | e615a191216e3fb4e9c0d239007f2b0cd48f28bf (patch) | |
| tree | 0af64500c4f575848193609912b68744c408882f /tools/perf/scripts/python/export-to-sqlite.py | |
| parent | 2e3f139e8ecebf177fe01299285a56855e93fb84 (diff) | |
PCI/P2PDMA: fix the gen_pool_add_virt() failure path
The pci_p2pdma_add_resource() implementation immediately frees the pgmap
if gen_pool_add_virt() fails. However, that means that when @dev
triggers a devres release devm_memremap_pages_release() will crash
trying to access the freed @pgmap.
Use the new devm_memunmap_pages() to manually free the mapping in the
error path.
Link: http://lkml.kernel.org/r/155727337603.292046.13101332703665246702.stgit@dwillia2-desk3.amr.corp.intel.com
Signed-off-by: Dan Williams <[email protected]>
Fixes: 52916982af48 ("PCI/P2PDMA: Support peer-to-peer memory")
Reviewed-by: Ira Weiny <[email protected]>
Acked-by: Bjorn Helgaas <[email protected]>
Reviewed-by: Logan Gunthorpe <[email protected]>
Cc: Christoph Hellwig <[email protected]>
Cc: Greg Kroah-Hartman <[email protected]>
Cc: "Jérôme Glisse" <[email protected]>
Cc: "Rafael J. Wysocki" <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/export-to-sqlite.py')
0 files changed, 0 insertions, 0 deletions