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iwlwifi: protect SRAM debugfs
authorJohannes Berg <johannes.berg@intel.com>
Tue, 21 Aug 2012 16:57:11 +0000 (18:57 +0200)
committerJohn W. Linville <linville@tuxdriver.com>
Tue, 21 Aug 2012 19:01:45 +0000 (15:01 -0400)
If the device is not started, we can't read its
SRAM and attempting to do so will cause issues.
Protect the debugfs read.

Cc: stable@vger.kernel.org
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

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