x86: msr: correct return value on partial operations
authorH. Peter Anvin <hpa@zytor.com>
Tue, 26 Aug 2008 00:34:27 +0000 (17:34 -0700)
committerH. Peter Anvin <hpa@zytor.com>
Tue, 26 Aug 2008 00:46:12 +0000 (17:46 -0700)
Return the correct return value when the MSR driver partially
completes a request (we should return the number of bytes actually
read or written, instead of the error code.)

Signed-off-by: H. Peter Anvin <hpa@zytor.com>

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