Lines Matching refs:NULL
19 if (sig == NULL) in valid_sig()
48 if (sig == NULL) in api_search_sig()
67 *sig = NULL; in api_search_sig()
81 if (!syscall(API_GETC, NULL, &c)) in ub_getc()
91 if (!syscall(API_TSTC, NULL, &t)) in ub_tstc()
99 syscall(API_PUTC, NULL, &c); in ub_putc()
104 syscall(API_PUTS, NULL, s); in ub_puts()
115 syscall(API_RESET, NULL); in ub_reset()
131 return NULL; in ub_get_sys_info()
133 return ((err) ? NULL : &si); in ub_get_sys_info()
144 syscall(API_UDELAY, NULL, &usec); in ub_udelay()
151 if (!syscall(API_GET_TIMER, NULL, &cur, &base)) in ub_get_timer()
170 return ((i < 0 || i >= UB_MAX_DEV) ? NULL : &devices[i]); in ub_dev_get()
187 if (!syscall(API_DEV_ENUM, NULL, di)) in ub_dev_enum()
190 while (di->cookie != NULL) { in ub_dev_enum()
201 if (!syscall(API_DEV_ENUM, NULL, di)) in ub_dev_enum()
237 if (!syscall(API_DEV_CLOSE, NULL, di)) in ub_dev_close()
348 if (!syscall(API_ENV_GET, NULL, name, &value)) in ub_env_get()
349 return NULL; in ub_env_get()
356 syscall(API_ENV_SET, NULL, name, value); in ub_env_set()
366 env = NULL; in ub_env_enum()
373 if (!syscall(API_ENV_ENUM, NULL, last, &env)) in ub_env_enum()
374 return NULL; in ub_env_enum()
378 return NULL; in ub_env_enum()
418 syscall(API_DISPLAY_CLEAR, NULL); in ub_display_clear()