From: Erik Arfvidson Date: Sat, 14 May 2016 03:17:21 +0000 (-0400) Subject: staging: unisys: iovmcall_gnuc.h change -1 return values X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=35b214155601cdbb97bc2d97524b5f0df176348d;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git 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: Erik Arfvidson Signed-off-by: David Kershner Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/staging/unisys/visorbus/iovmcall_gnuc.h b/drivers/staging/unisys/visorbus/iovmcall_gnuc.h index b08b6ecc8d31..98ea7f381a3c 100644 --- a/drivers/staging/unisys/visorbus/iovmcall_gnuc.h +++ b/drivers/staging/unisys/visorbus/iovmcall_gnuc.h @@ -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));