]> git.baikalelectronics.ru Git - kernel.git/commit
Merge branch 'liquidio-lowmem-fixes'
authorDavid S. Miller <davem@davemloft.net>
Wed, 19 Jul 2017 20:24:47 +0000 (13:24 -0700)
committerDavid S. Miller <davem@davemloft.net>
Wed, 19 Jul 2017 20:24:47 +0000 (13:24 -0700)
commit57b29c297d98d037fc86d4a8f5fd3318d9fc810c
tree5b93999c4fe78c526c1571e7db1230e4e0c4679b
parent592b685087a11859fe5a2dc715622132f3d4ea3c
parent01a53825600b5091254183c6f677571eb9938ae7
Merge branch 'liquidio-lowmem-fixes'

Rick Farrington says:

====================
liquidio: avoid vm low memory crashes

This patchset addresses issues brought about by low memory conditions
in a VM.  These conditions were not seen when the driver was exercised
normally.  Rather, they were brought about through manual fault injection.
They are being included in the interest of hardening the driver against
unforeseen circumstances.

1. Fix GPF in octeon_init_droq(); zero the allocated block 'recv_buf_list'.
   This prevents a GPF trying to access an invalid 'recv_buf_list[i]' entry
   in octeon_droq_destroy_ring_buffers() if init didn't alloc all entries.
2. Don't dereference a NULL ptr in octeon_droq_destroy_ring_buffers().
3. For defensive programming, zero the allocated block 'oct->droq' in
   octeon_setup_output_queues() and 'oct->instr_queue' in
   octeon_setup_instr_queues().

change log:
V1 -> V2:
1. Corrected syntax in 'Subject' lines; no functional or code changes.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>