diff options
Diffstat (limited to 'arch/x86/kernel')
-rw-r--r-- | arch/x86/kernel/fpu/signal.c | 22 | ||||
-rw-r--r-- | arch/x86/kernel/signal.c | 4 |
2 files changed, 12 insertions, 14 deletions
diff --git a/arch/x86/kernel/fpu/signal.c b/arch/x86/kernel/fpu/signal.c index 1d10fe9b5b6b..d418d28819b9 100644 --- a/arch/x86/kernel/fpu/signal.c +++ b/arch/x86/kernel/fpu/signal.c @@ -433,17 +433,17 @@ static inline int xstate_sigframe_size(void) /* * Restore FPU state from a sigframe: */ -int fpu__restore_sig(void __user *buf, int ia32_frame) +bool fpu__restore_sig(void __user *buf, int ia32_frame) { unsigned int size = xstate_sigframe_size(); struct fpu *fpu = ¤t->thread.fpu; void __user *buf_fx = buf; bool ia32_fxstate = false; - int ret; + bool success = false; if (unlikely(!buf)) { fpu__clear_user_states(fpu); - return 0; + return true; } ia32_frame &= (IS_ENABLED(CONFIG_X86_32) || @@ -459,23 +459,21 @@ int fpu__restore_sig(void __user *buf, int ia32_frame) ia32_fxstate = true; } - if (!access_ok(buf, size)) { - ret = -EACCES; + if (!access_ok(buf, size)) goto out; - } if (!IS_ENABLED(CONFIG_X86_64) && !cpu_feature_enabled(X86_FEATURE_FPU)) { - ret = fpregs_soft_set(current, NULL, 0, - sizeof(struct user_i387_ia32_struct), - NULL, buf); + success = !fpregs_soft_set(current, NULL, 0, + sizeof(struct user_i387_ia32_struct), + NULL, buf); } else { - ret = __fpu_restore_sig(buf, buf_fx, ia32_fxstate); + success = !__fpu_restore_sig(buf, buf_fx, ia32_fxstate); } out: - if (unlikely(ret)) + if (unlikely(!success)) fpu__clear_user_states(fpu); - return ret; + return success; } unsigned long diff --git a/arch/x86/kernel/signal.c b/arch/x86/kernel/signal.c index 140b7b2dbafe..02ee68e68184 100644 --- a/arch/x86/kernel/signal.c +++ b/arch/x86/kernel/signal.c @@ -136,8 +136,8 @@ static bool restore_sigcontext(struct pt_regs *regs, force_valid_ss(regs); #endif - return !fpu__restore_sig((void __user *)sc.fpstate, - IS_ENABLED(CONFIG_X86_32)); + return fpu__restore_sig((void __user *)sc.fpstate, + IS_ENABLED(CONFIG_X86_32)); } static __always_inline int |