Commit 35b21415 authored by Erik Arfvidson's avatar Erik Arfvidson Committed by Greg Kroah-Hartman
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staging: unisys: iovmcall_gnuc.h change -1 return values 



This patch changes the vague -1 return values to -EPERM.
This operation is not supported is a good alternative
to -1 because the return is basically telling the caller
that the processor doesn't support vmcall operations.

Signed-off-by: default avatarErik Arfvidson <erik.arfvidson@unisys.com>
Signed-off-by: default avatarDavid Kershner <david.kershner@unisys.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 119296ea

drivers/staging/unisys/visorbus/iovmcall_gnuc.h

+2 −2
Original line number Diff line number Diff line
@@ -22,7 +22,7 @@ __unisys_vmcall_gnuc(unsigned long tuple, unsigned long reg_ebx, 


	cpuid(0x00000001, &cpuid_eax, &cpuid_ebx, &cpuid_ecx, &cpuid_edx);

	if (!(cpuid_ecx & 0x80000000))

		return -1;

		return -EPERM;



	__asm__ __volatile__(".byte 0x00f, 0x001, 0x0c1" : "=a"(result) :

		"a"(tuple), "b"(reg_ebx), "c"(reg_ecx));
@@ -40,7 +40,7 @@ __unisys_extended_vmcall_gnuc(unsigned long long tuple, 


	cpuid(0x00000001, &cpuid_eax, &cpuid_ebx, &cpuid_ecx, &cpuid_edx);

	if (!(cpuid_ecx & 0x80000000))

		return -1;

		return -EPERM;



	__asm__ __volatile__(".byte 0x00f, 0x001, 0x0c1" : "=a"(result) :

		"a"(tuple), "b"(reg_ebx), "c"(reg_ecx), "d"(reg_edx));

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