Lines Matching refs:NULL
97 acpi_descriptor_header* rsdt = NULL;
100 if (rsdt != NULL
102 rsdt = NULL;
110 if (rsdt == NULL) {
113 if (rsdt == NULL) {
118 rsdt = NULL;
126 if (rsdt != NULL) {
149 if (acpiSdt == NULL)
150 return NULL;
160 return NULL;
169 acpi_descriptor_header* header = NULL;
172 if (header != NULL && strncmp(header->signature, signature, 4) == 0) {
178 signature, header != NULL ? header->signature : "null"));
179 header = NULL;
183 return NULL;
190 if (sAcpiRsdt != NULL)
192 else if (sAcpiXsdt != NULL)
195 return NULL;
221 if (rsdp != NULL && acpi_check_rsdt(rsdp) == B_OK) {