From: Guo Chao Date: Fri, 2 Nov 2012 10:33:23 +0000 (+0800) Subject: KVM: remove unnecessary return value check X-Git-Url: http://drtracing.org/?a=commitdiff_plain;h=807f12e57c9783458b8c07f63eff3c3e1df8ab5d;p=deliverable%2Flinux.git KVM: remove unnecessary return value check No need to check return value before breaking switch. Signed-off-by: Guo Chao Signed-off-by: Marcelo Tosatti --- diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index a25b3df8e3e1..c31f75dd24d4 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -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: { @@ -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: { @@ -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: { @@ -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: { @@ -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; @@ -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); @@ -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: { @@ -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: { @@ -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: { @@ -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: { @@ -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: { diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c index 316d76aa030d..e3f5b143158e 100644 --- a/virt/kvm/kvm_main.c +++ b/virt/kvm/kvm_main.c @@ -1929,10 +1929,6 @@ out_free1: 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; } @@ -1958,9 +1954,6 @@ out_free2: goto out; } r = kvm_arch_vcpu_ioctl_set_sregs(vcpu, kvm_sregs); - if (r) - goto out; - r = 0; break; } case KVM_GET_MP_STATE: { @@ -1982,9 +1975,6 @@ out_free2: 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: { @@ -2009,9 +1999,6 @@ out_free2: 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: { @@ -2059,9 +2046,6 @@ out_free2: goto out; } r = kvm_arch_vcpu_ioctl_set_fpu(vcpu, fpu); - if (r) - goto out; - r = 0; break; } default: @@ -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; @@ -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: { @@ -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 @@ -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: { @@ -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 @@ -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: