diff options
| author | Erik Arfvidson <erik.arfvidson@unisys.com> | 2016-05-14 03:17:21 (GMT) |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2016-06-08 05:58:16 (GMT) |
| commit | 35b214155601cdbb97bc2d97524b5f0df176348d (patch) | |
| tree | f2d3f255cd5910224184814d185803ed7e7d5f70 /drivers/staging/unisys | |
| parent | 119296eaa8a5dd8c3dbd5051202a06ae9a1d04fc (diff) | |
| download | linux-35b214155601cdbb97bc2d97524b5f0df176348d.tar.xz | |
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 <erik.arfvidson@unisys.com>
Signed-off-by: David Kershner <david.kershner@unisys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/staging/unisys')
| -rw-r--r-- | drivers/staging/unisys/visorbus/iovmcall_gnuc.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/staging/unisys/visorbus/iovmcall_gnuc.h b/drivers/staging/unisys/visorbus/iovmcall_gnuc.h index b08b6ec..98ea7f3 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)); |