From: Linus Torvalds <torvalds@linux-foundation.org>
Date: Thu, 4 Oct 2012 16:19:02 +0000 (-0700)
Subject: firmware: use 'kernel_read()' to read firmware into kernel buffer
X-Git-Tag: omap-for-v3.7-rc1/fixes-cpufreq-signed~16
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ce57e981f2b996aaca2031003b3f866368307766;p=pandora-kernel.git

firmware: use 'kernel_read()' to read firmware into kernel buffer

Fengguang correctly points out that the firmware reading should not use
vfs_read(), since the buffer is in kernel space.

The vfs_read() just happened to work for kernel threads, but sparse
warns about the incorrect address spaces, and it's definitely incorrect
and could fail for other users of the firmware loading.

Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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