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IB/hfi1: Ensure dd->gi_mask can not be overflowed
authorDennis Dalessandro <dennis.dalessandro@intel.com>
Tue, 30 May 2017 00:18:14 +0000 (17:18 -0700)
committerDoug Ledford <dledford@redhat.com>
Tue, 27 Jun 2017 20:58:12 +0000 (16:58 -0400)
commitbc54f6714c3a5d1f7ac6e7e5a5f7c390b1a01285
treecb88bbf55c32434a129d2f582856dcec63a85852tree | snapshot
parentb2f8a04e77bad520d52b7f321ca776b33c947ad0commit | diff
IB/hfi1: Ensure dd->gi_mask can not be overflowed

As the code stands today the array access in remap_intr() is OK. To
future proof the code though we should explicitly check to ensure the
index value is not outside of the valid range. This is not a straight
forward calculation so err on the side of caution.

Reviewed-by: Michael J. Ruhl <michael.j.ruhl@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
drivers/infiniband/hw/hfi1/chip.c diff | blob | history
Domain: System / Kernel;