iwlwifi: remember the last uCode sysassert error code
authorWey-Yi Guy <wey-yi.w.guy@intel.com>
Fri, 27 Aug 2010 17:41:37 +0000 (10:41 -0700)
committerWey-Yi Guy <wey-yi.w.guy@intel.com>
Sat, 11 Sep 2010 15:50:59 +0000 (08:50 -0700)
When sysassert happen, uCode will report the error code,
driver dump the information to dmesg. Here also remember
the last error code for future reference.

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

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