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29 July 2024, 15:18:00 UTC
Revision b811ce9104a7f7663ddae4f7795a194a103b8f90 authored by Jesse Brandeburg on 20 September 2011, 15:13:03 UTC, committed by David S. Miller on 21 September 2011, 06:14:13 UTC 
ixgbe: fix possible null buffer error
 
It seems that at least one PPC machine would occasionally give a (valid) 0 as
the return value from dma_map, this caused the ixgbe code to not work
correctly.  A fix is pending in the PPC tree to not return 0 from dma map, but
we can also fix the driver to make sure we don't mess up in other arches as
well.

This patch is applicable to all current stable kernels.

Ref: https://bugzilla.redhat.com/show_bug.cgi?id=683611

Reported-by: Neil Horman <nhorman@redhat.com>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
CC: Alexander Duyck <alexander.h.duyck@intel.com>
CC: stable@kernel.org
Tested-by: Thadeu Lima de Souza Cascardo <cascardo@linux.vnet.ibm.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
1 parent 5c1e688
History
Tip revision: b811ce9104a7f7663ddae4f7795a194a103b8f90 authored by Jesse Brandeburg on 20 September 2011, 15:13:03 UTC
ixgbe: fix possible null buffer error
Tip revision: b811ce9
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