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KVM: remove unnecessary return value check
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No need to check return value before breaking switch.

Signed-off-by: Guo Chao <[email protected]>
Signed-off-by: Marcelo Tosatti <[email protected]>
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@matosatti
Guo Chao authored and matosatti committed Nov 14, 2012
1 parent 951179c commit 807f12e
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Showing 2 changed files with 0 additions and 62 deletions.
32 changes: 0 additions & 32 deletions arch/x86/kvm/x86.c
View file
Original file line number Diff line number Diff line change
Expand Up @@ -2696,9 +2696,6 @@ long kvm_arch_vcpu_ioctl(struct file *filp,
return PTR_ERR(u.lapic);

r = kvm_vcpu_ioctl_set_lapic(vcpu, u.lapic);
if (r)
goto out;
r = 0;
break;
}
case KVM_INTERRUPT: {
Expand All @@ -2708,16 +2705,10 @@ long kvm_arch_vcpu_ioctl(struct file *filp,
if (copy_from_user(&irq, argp, sizeof irq))
goto out;
r = kvm_vcpu_ioctl_interrupt(vcpu, &irq);
if (r)
goto out;
r = 0;
break;
}
case KVM_NMI: {
r = kvm_vcpu_ioctl_nmi(vcpu);
if (r)
goto out;
r = 0;
break;
}
case KVM_SET_CPUID: {
Expand All @@ -2728,8 +2719,6 @@ long kvm_arch_vcpu_ioctl(struct file *filp,
if (copy_from_user(&cpuid, cpuid_arg, sizeof cpuid))
goto out;
r = kvm_vcpu_ioctl_set_cpuid(vcpu, &cpuid, cpuid_arg->entries);
if (r)
goto out;
break;
}
case KVM_SET_CPUID2: {
Expand All @@ -2741,8 +2730,6 @@ long kvm_arch_vcpu_ioctl(struct file *filp,
goto out;
r = kvm_vcpu_ioctl_set_cpuid2(vcpu, &cpuid,
cpuid_arg->entries);
if (r)
goto out;
break;
}
case KVM_GET_CPUID2: {
Expand Down Expand Up @@ -3207,8 +3194,6 @@ long kvm_arch_vm_ioctl(struct file *filp,
switch (ioctl) {
case KVM_SET_TSS_ADDR:
r = kvm_vm_ioctl_set_tss_addr(kvm, arg);
if (r < 0)
goto out;
break;
case KVM_SET_IDENTITY_MAP_ADDR: {
u64 ident_addr;
Expand All @@ -3217,14 +3202,10 @@ long kvm_arch_vm_ioctl(struct file *filp,
if (copy_from_user(&ident_addr, argp, sizeof ident_addr))
goto out;
r = kvm_vm_ioctl_set_identity_map_addr(kvm, ident_addr);
if (r < 0)
goto out;
break;
}
case KVM_SET_NR_MMU_PAGES:
r = kvm_vm_ioctl_set_nr_mmu_pages(kvm, arg);
if (r)
goto out;
break;
case KVM_GET_NR_MMU_PAGES:
r = kvm_vm_ioctl_get_nr_mmu_pages(kvm);
Expand Down Expand Up @@ -3315,8 +3296,6 @@ long kvm_arch_vm_ioctl(struct file *filp,
r = 0;
get_irqchip_out:
kfree(chip);
if (r)
goto out;
break;
}
case KVM_SET_IRQCHIP: {
Expand All @@ -3338,8 +3317,6 @@ long kvm_arch_vm_ioctl(struct file *filp,
r = 0;
set_irqchip_out:
kfree(chip);
if (r)
goto out;
break;
}
case KVM_GET_PIT: {
Expand All @@ -3366,9 +3343,6 @@ long kvm_arch_vm_ioctl(struct file *filp,
if (!kvm->arch.vpit)
goto out;
r = kvm_vm_ioctl_set_pit(kvm, &u.ps);
if (r)
goto out;
r = 0;
break;
}
case KVM_GET_PIT2: {
Expand All @@ -3392,9 +3366,6 @@ long kvm_arch_vm_ioctl(struct file *filp,
if (!kvm->arch.vpit)
goto out;
r = kvm_vm_ioctl_set_pit2(kvm, &u.ps2);
if (r)
goto out;
r = 0;
break;
}
case KVM_REINJECT_CONTROL: {
Expand All @@ -3403,9 +3374,6 @@ long kvm_arch_vm_ioctl(struct file *filp,
if (copy_from_user(&control, argp, sizeof(control)))
goto out;
r = kvm_vm_ioctl_reinject(kvm, &control);
if (r)
goto out;
r = 0;
break;
}
case KVM_XEN_HVM_CONFIG: {
Expand Down
30 changes: 0 additions & 30 deletions virt/kvm/kvm_main.c
View file
Original file line number Diff line number Diff line change
Expand Up @@ -1929,10 +1929,6 @@ static long kvm_vcpu_ioctl(struct file *filp,
goto out;
}
r = kvm_arch_vcpu_ioctl_set_regs(vcpu, kvm_regs);
if (r)
goto out_free2;
r = 0;
out_free2:
kfree(kvm_regs);
break;
}
Expand All @@ -1958,9 +1954,6 @@ static long kvm_vcpu_ioctl(struct file *filp,
goto out;
}
r = kvm_arch_vcpu_ioctl_set_sregs(vcpu, kvm_sregs);
if (r)
goto out;
r = 0;
break;
}
case KVM_GET_MP_STATE: {
Expand All @@ -1982,9 +1975,6 @@ static long kvm_vcpu_ioctl(struct file *filp,
if (copy_from_user(&mp_state, argp, sizeof mp_state))
goto out;
r = kvm_arch_vcpu_ioctl_set_mpstate(vcpu, &mp_state);
if (r)
goto out;
r = 0;
break;
}
case KVM_TRANSLATE: {
Expand All @@ -2009,9 +1999,6 @@ static long kvm_vcpu_ioctl(struct file *filp,
if (copy_from_user(&dbg, argp, sizeof dbg))
goto out;
r = kvm_arch_vcpu_ioctl_set_guest_debug(vcpu, &dbg);
if (r)
goto out;
r = 0;
break;
}
case KVM_SET_SIGNAL_MASK: {
Expand Down Expand Up @@ -2059,9 +2046,6 @@ static long kvm_vcpu_ioctl(struct file *filp,
goto out;
}
r = kvm_arch_vcpu_ioctl_set_fpu(vcpu, fpu);
if (r)
goto out;
r = 0;
break;
}
default:
Expand Down Expand Up @@ -2131,8 +2115,6 @@ static long kvm_vm_ioctl(struct file *filp,
switch (ioctl) {
case KVM_CREATE_VCPU:
r = kvm_vm_ioctl_create_vcpu(kvm, arg);
if (r < 0)
goto out;
break;
case KVM_SET_USER_MEMORY_REGION: {
struct kvm_userspace_memory_region kvm_userspace_mem;
Expand All @@ -2143,8 +2125,6 @@ static long kvm_vm_ioctl(struct file *filp,
goto out;

r = kvm_vm_ioctl_set_memory_region(kvm, &kvm_userspace_mem, 1);
if (r)
goto out;
break;
}
case KVM_GET_DIRTY_LOG: {
Expand All @@ -2154,8 +2134,6 @@ static long kvm_vm_ioctl(struct file *filp,
if (copy_from_user(&log, argp, sizeof log))
goto out;
r = kvm_vm_ioctl_get_dirty_log(kvm, &log);
if (r)
goto out;
break;
}
#ifdef KVM_COALESCED_MMIO_PAGE_OFFSET
Expand All @@ -2165,9 +2143,6 @@ static long kvm_vm_ioctl(struct file *filp,
if (copy_from_user(&zone, argp, sizeof zone))
goto out;
r = kvm_vm_ioctl_register_coalesced_mmio(kvm, &zone);
if (r)
goto out;
r = 0;
break;
}
case KVM_UNREGISTER_COALESCED_MMIO: {
Expand All @@ -2176,9 +2151,6 @@ static long kvm_vm_ioctl(struct file *filp,
if (copy_from_user(&zone, argp, sizeof zone))
goto out;
r = kvm_vm_ioctl_unregister_coalesced_mmio(kvm, &zone);
if (r)
goto out;
r = 0;
break;
}
#endif
Expand Down Expand Up @@ -2287,8 +2259,6 @@ static long kvm_vm_compat_ioctl(struct file *filp,
log.dirty_bitmap = compat_ptr(compat_log.dirty_bitmap);

r = kvm_vm_ioctl_get_dirty_log(kvm, &log);
if (r)
goto out;
break;
}
default:
Expand Down

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