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authorH. Peter Anvin <hpa@zytor.com>2009-08-31 14:23:29 -0700
committerH. Peter Anvin <hpa@zytor.com>2009-08-31 15:15:23 -0700
commit0cc0213e73af5963eca259c84876937c20689dbd (patch)
tree2e3db62cc241269fbb3ee3313e568239cf4c9bd0 /arch/x86/include
parent79c5dca3619d6ae15815eec14cd7a43db5f38b47 (diff)
x86, msr: Have the _safe MSR functions return -EIO, not -EFAULT
For some reason, the _safe MSR functions returned -EFAULT, not -EIO. However, the only user which cares about the return code as anything other than a boolean is the MSR driver, which wants -EIO. Change it to -EIO across the board. Signed-off-by: H. Peter Anvin <hpa@zytor.com> Cc: Jeremy Fitzhardinge <jeremy@xensource.com> Cc: Chris Wright <chrisw@sous-sol.org> Cc: Alok Kataria <akataria@vmware.com> Cc: Rusty Russell <rusty@rustcorp.com.au>
Diffstat (limited to 'arch/x86/include')
-rw-r--r--arch/x86/include/asm/msr.h4
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/x86/include/asm/msr.h b/arch/x86/include/asm/msr.h
index 09c5ca70d49..943fdd572e1 100644
--- a/arch/x86/include/asm/msr.h
+++ b/arch/x86/include/asm/msr.h
@@ -67,7 +67,7 @@ static inline unsigned long long native_read_msr_safe(unsigned int msr,
".previous\n\t"
_ASM_EXTABLE(2b, 3b)
: [err] "=r" (*err), EAX_EDX_RET(val, low, high)
- : "c" (msr), [fault] "i" (-EFAULT));
+ : "c" (msr), [fault] "i" (-EIO));
return EAX_EDX_VAL(val, low, high);
}
@@ -90,7 +90,7 @@ notrace static inline int native_write_msr_safe(unsigned int msr,
_ASM_EXTABLE(2b, 3b)
: [err] "=a" (err)
: "c" (msr), "0" (low), "d" (high),
- [fault] "i" (-EFAULT)
+ [fault] "i" (-EIO)
: "memory");
return err;
}