1*858ea5e5SAndroid Build Coastguard Worker /* SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) */ 2*858ea5e5SAndroid Build Coastguard Worker 3*858ea5e5SAndroid Build Coastguard Worker #ifndef __LINUX_ERR_H 4*858ea5e5SAndroid Build Coastguard Worker #define __LINUX_ERR_H 5*858ea5e5SAndroid Build Coastguard Worker 6*858ea5e5SAndroid Build Coastguard Worker #include <linux/types.h> 7*858ea5e5SAndroid Build Coastguard Worker #include <asm/errno.h> 8*858ea5e5SAndroid Build Coastguard Worker 9*858ea5e5SAndroid Build Coastguard Worker #define MAX_ERRNO 4095 10*858ea5e5SAndroid Build Coastguard Worker 11*858ea5e5SAndroid Build Coastguard Worker #define IS_ERR_VALUE(x) ((x) >= (unsigned long)-MAX_ERRNO) 12*858ea5e5SAndroid Build Coastguard Worker ERR_PTR(long error_)13*858ea5e5SAndroid Build Coastguard Workerstatic inline void * ERR_PTR(long error_) 14*858ea5e5SAndroid Build Coastguard Worker { 15*858ea5e5SAndroid Build Coastguard Worker return (void *) error_; 16*858ea5e5SAndroid Build Coastguard Worker } 17*858ea5e5SAndroid Build Coastguard Worker PTR_ERR(const void * ptr)18*858ea5e5SAndroid Build Coastguard Workerstatic inline long PTR_ERR(const void *ptr) 19*858ea5e5SAndroid Build Coastguard Worker { 20*858ea5e5SAndroid Build Coastguard Worker return (long) ptr; 21*858ea5e5SAndroid Build Coastguard Worker } 22*858ea5e5SAndroid Build Coastguard Worker IS_ERR(const void * ptr)23*858ea5e5SAndroid Build Coastguard Workerstatic inline bool IS_ERR(const void *ptr) 24*858ea5e5SAndroid Build Coastguard Worker { 25*858ea5e5SAndroid Build Coastguard Worker return IS_ERR_VALUE((unsigned long)ptr); 26*858ea5e5SAndroid Build Coastguard Worker } 27*858ea5e5SAndroid Build Coastguard Worker IS_ERR_OR_NULL(const void * ptr)28*858ea5e5SAndroid Build Coastguard Workerstatic inline bool IS_ERR_OR_NULL(const void *ptr) 29*858ea5e5SAndroid Build Coastguard Worker { 30*858ea5e5SAndroid Build Coastguard Worker return (!ptr) || IS_ERR_VALUE((unsigned long)ptr); 31*858ea5e5SAndroid Build Coastguard Worker } 32*858ea5e5SAndroid Build Coastguard Worker 33*858ea5e5SAndroid Build Coastguard Worker #endif 34