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path: root/drivers/acpi/namespace/nsaccess.c
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Diffstat (limited to 'drivers/acpi/namespace/nsaccess.c')
-rw-r--r--drivers/acpi/namespace/nsaccess.c36
1 files changed, 16 insertions, 20 deletions
diff --git a/drivers/acpi/namespace/nsaccess.c b/drivers/acpi/namespace/nsaccess.c
index c1c6c236df9a..b2ef6730be81 100644
--- a/drivers/acpi/namespace/nsaccess.c
+++ b/drivers/acpi/namespace/nsaccess.c
@@ -195,31 +195,27 @@ acpi_status acpi_ns_root_initialize(void)
195 obj_desc->mutex.sync_level = 195 obj_desc->mutex.sync_level =
196 (u8) (ACPI_TO_INTEGER(val) - 1); 196 (u8) (ACPI_TO_INTEGER(val) - 1);
197 197
198 if (ACPI_STRCMP(init_val->name, "_GL_") == 0) { 198 /* Create a mutex */
199 199
200 /* Create a counting semaphore for the global lock */ 200 status =
201 acpi_os_create_mutex(&obj_desc->mutex.
202 os_mutex);
203 if (ACPI_FAILURE(status)) {
204 acpi_ut_remove_reference(obj_desc);
205 goto unlock_and_exit;
206 }
201 207
202 status = 208 /* Special case for ACPI Global Lock */
203 acpi_os_create_semaphore
204 (ACPI_NO_UNIT_LIMIT, 1,
205 &acpi_gbl_global_lock_semaphore);
206 if (ACPI_FAILURE(status)) {
207 acpi_ut_remove_reference
208 (obj_desc);
209 goto unlock_and_exit;
210 }
211 209
212 /* Mark this mutex as very special */ 210 if (ACPI_STRCMP(init_val->name, "_GL_") == 0) {
211 acpi_gbl_global_lock_mutex =
212 obj_desc->mutex.os_mutex;
213 213
214 obj_desc->mutex.os_mutex = 214 /* Create additional counting semaphore for global lock */
215 ACPI_GLOBAL_LOCK;
216 } else {
217 /* Create a mutex */
218 215
219 status = 216 status =
220 acpi_os_create_mutex(&obj_desc-> 217 acpi_os_create_semaphore(1, 1,
221 mutex. 218 &acpi_gbl_global_lock_semaphore);
222 os_mutex);
223 if (ACPI_FAILURE(status)) { 219 if (ACPI_FAILURE(status)) {
224 acpi_ut_remove_reference 220 acpi_ut_remove_reference
225 (obj_desc); 221 (obj_desc);