iwlagn: check DMA mapping errors
authorJohannes Berg <johannes.berg@intel.com>
Thu, 28 Apr 2011 14:27:10 +0000 (07:27 -0700)
committerWey-Yi Guy <wey-yi.w.guy@intel.com>
Fri, 6 May 2011 17:46:23 +0000 (10:46 -0700)
DMA mappings can fail, but the current code
doesn't check for that. Add checking, which
requires some restructuring for proper error
paths.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>

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