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| author | Dan Williams <dan.j.williams@intel.com> | 2014-05-08 19:25:56 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-05-20 10:03:24 +0900 |
| commit | 29d2fef8be1165a26984a94fbcf81d68c1442fc5 (patch) | |
| tree | b16a13a26c04b099add552c7edb14d71a7db5da3 /tools/perf/scripts/python/netdev-times.py | |
| parent | 654a55d34f880bb56b3cebab53771a09a404a1f8 (diff) | |
usb: catch attempts to submit urbs with a vmalloc'd transfer buffer
Save someone else the debug cycles of figuring out why a driver's
transfer request is failing or causing undefined system behavior.
Buffers submitted for dma must come from GFP allocated / DMA-able
memory.
Return -EAGAIN matching the return value for dma_mapping_error() cases.
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Cc: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Cc: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'tools/perf/scripts/python/netdev-times.py')
0 files changed, 0 insertions, 0 deletions