1 files changed, 72 insertions, 96 deletions

diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c
index 18b3ea9dace2..8c5d7df7d343 100644
--- a/drivers/acpi/ec.c
+++ b/drivers/acpi/ec.c
@@ -207,16 +207,15 @@ static int acpi_ec_intr_wait(union acpi_ec *ec, unsigned int event)
 {
         int result = 0;
 
-        ACPI_FUNCTION_TRACE("acpi_ec_wait");
 
         ec->intr.expect_event = event;
         smp_mb();
 
         switch (event) {
         case ACPI_EC_EVENT_IBE:
-                if (~acpi_ec_read_status(ec) & event) {
+                if (~acpi_ec_read_status(ec) & ACPI_EC_FLAG_IBF) {
                         ec->intr.expect_event = 0;
-                        return_VALUE(0);
+                        return 0;
                 }
                 break;
         default:
@@ -238,16 +237,16 @@ static int acpi_ec_intr_wait(union acpi_ec *ec, unsigned int event)
         switch (event) {
         case ACPI_EC_EVENT_OBF:
                 if (acpi_ec_read_status(ec) & ACPI_EC_FLAG_OBF)
-                        return_VALUE(0);
+                        return 0;
                 break;
 
         case ACPI_EC_EVENT_IBE:
                 if (~acpi_ec_read_status(ec) & ACPI_EC_FLAG_IBF)
-                        return_VALUE(0);
+                        return 0;
                 break;
         }
 
-        return_VALUE(-ETIME);
+        return -ETIME;
 }
 
 #ifdef ACPI_FUTURE_USAGE
@@ -260,7 +259,6 @@ int acpi_ec_enter_burst_mode(union acpi_ec *ec)
         u32 tmp = 0;
         int status = 0;
 
-        ACPI_FUNCTION_TRACE("acpi_ec_enter_burst_mode");
 
         status = acpi_ec_read_status(ec);
         if (status != -EINVAL && !(status & ACPI_EC_FLAG_BURST)) {
@@ -272,22 +270,21 @@ int acpi_ec_enter_burst_mode(union acpi_ec *ec)
                 status = acpi_ec_wait(ec, ACPI_EC_EVENT_OBF);
                 acpi_hw_low_level_read(8, &tmp, &ec->common.data_addr);
                 if (tmp != 0x90) {      /* Burst ACK byte */
-                        return_VALUE(-EINVAL);
+                        return -EINVAL;
                 }
         }
 
         atomic_set(&ec->intr.leaving_burst, 0);
-        return_VALUE(0);
+        return 0;
       end:
-        printk(KERN_WARNING PREFIX "Error in acpi_ec_wait\n");
-        return_VALUE(-1);
+        ACPI_EXCEPTION ((AE_INFO, status, "EC wait, burst mode");
+        return -1;
 }
 
 int acpi_ec_leave_burst_mode(union acpi_ec *ec)
 {
         int status = 0;
 
-        ACPI_FUNCTION_TRACE("acpi_ec_leave_burst_mode");
 
         status = acpi_ec_read_status(ec);
         if (status != -EINVAL && (status & ACPI_EC_FLAG_BURST)){
@@ -298,10 +295,10 @@ int acpi_ec_leave_burst_mode(union acpi_ec *ec)
                 acpi_ec_wait(ec, ACPI_EC_FLAG_IBF);
         } 
         atomic_set(&ec->intr.leaving_burst, 1);
-        return_VALUE(0);
+        return 0;
 end:
-        printk(KERN_WARNING PREFIX "leave burst_mode:error\n");
-        return_VALUE(-1);
+        ACPI_EXCEPTION((AE_INFO, status, "EC leave burst mode");
+        return -1;
 }
 #endif /* ACPI_FUTURE_USAGE */
 
@@ -325,17 +322,16 @@ static int acpi_ec_poll_read(union acpi_ec *ec, u8 address, u32 * data)
         int result = 0;
         u32 glk = 0;
 
-        ACPI_FUNCTION_TRACE("acpi_ec_read");
 
         if (!ec || !data)
-                return_VALUE(-EINVAL);
+                return -EINVAL;
 
         *data = 0;
 
         if (ec->common.global_lock) {
                 status = acpi_acquire_global_lock(ACPI_EC_UDELAY_GLK, &glk);
                 if (ACPI_FAILURE(status))
-                        return_VALUE(-ENODEV);
+                        return -ENODEV;
         }
 
         if (down_interruptible(&ec->poll.sem)) {
@@ -365,7 +361,7 @@ end_nosem:
         if (ec->common.global_lock)
                 acpi_release_global_lock(glk);
 
-        return_VALUE(result);
+        return result;
 }
 
 static int acpi_ec_poll_write(union acpi_ec *ec, u8 address, u8 data)
@@ -374,15 +370,14 @@ static int acpi_ec_poll_write(union acpi_ec *ec, u8 address, u8 data)
         acpi_status status = AE_OK;
         u32 glk = 0;
 
-        ACPI_FUNCTION_TRACE("acpi_ec_write");
 
         if (!ec)
-                return_VALUE(-EINVAL);
+                return -EINVAL;
 
         if (ec->common.global_lock) {
                 status = acpi_acquire_global_lock(ACPI_EC_UDELAY_GLK, &glk);
                 if (ACPI_FAILURE(status))
-                        return_VALUE(-ENODEV);
+                        return -ENODEV;
         }
 
         if (down_interruptible(&ec->poll.sem)) {
@@ -415,7 +410,7 @@ end_nosem:
         if (ec->common.global_lock)
                 acpi_release_global_lock(glk);
 
-        return_VALUE(result);
+        return result;
 }
 
 static int acpi_ec_intr_read(union acpi_ec *ec, u8 address, u32 * data)
@@ -423,17 +418,16 @@ static int acpi_ec_intr_read(union acpi_ec *ec, u8 address, u32 * data)
         int status = 0;
         u32 glk;
 
-        ACPI_FUNCTION_TRACE("acpi_ec_read");
 
         if (!ec || !data)
-                return_VALUE(-EINVAL);
+                return -EINVAL;
 
         *data = 0;
 
         if (ec->common.global_lock) {
                 status = acpi_acquire_global_lock(ACPI_EC_UDELAY_GLK, &glk);
                 if (ACPI_FAILURE(status))
-                        return_VALUE(-ENODEV);
+                        return -ENODEV;
         }
 
         WARN_ON(in_interrupt());
@@ -467,7 +461,7 @@ static int acpi_ec_intr_read(union acpi_ec *ec, u8 address, u32 * data)
         if (ec->common.global_lock)
                 acpi_release_global_lock(glk);
 
-        return_VALUE(status);
+        return status;
 }
 
 static int acpi_ec_intr_write(union acpi_ec *ec, u8 address, u8 data)
@@ -475,15 +469,14 @@ static int acpi_ec_intr_write(union acpi_ec *ec, u8 address, u8 data)
         int status = 0;
         u32 glk;
 
-        ACPI_FUNCTION_TRACE("acpi_ec_write");
 
         if (!ec)
-                return_VALUE(-EINVAL);
+                return -EINVAL;
 
         if (ec->common.global_lock) {
                 status = acpi_acquire_global_lock(ACPI_EC_UDELAY_GLK, &glk);
                 if (ACPI_FAILURE(status))
-                        return_VALUE(-ENODEV);
+                        return -ENODEV;
         }
 
         WARN_ON(in_interrupt());
@@ -516,7 +509,7 @@ static int acpi_ec_intr_write(union acpi_ec *ec, u8 address, u8 data)
         if (ec->common.global_lock)
                 acpi_release_global_lock(glk);
 
-        return_VALUE(status);
+        return status;
 }
 
 /*
@@ -574,17 +567,16 @@ static int acpi_ec_poll_query(union acpi_ec *ec, u32 * data)
         acpi_status status = AE_OK;
         u32 glk = 0;
 
-        ACPI_FUNCTION_TRACE("acpi_ec_query");
 
         if (!ec || !data)
-                return_VALUE(-EINVAL);
+                return -EINVAL;
 
         *data = 0;
 
         if (ec->common.global_lock) {
                 status = acpi_acquire_global_lock(ACPI_EC_UDELAY_GLK, &glk);
                 if (ACPI_FAILURE(status))
-                        return_VALUE(-ENODEV);
+                        return -ENODEV;
         }
 
         /*
@@ -613,23 +605,22 @@ end_nosem:
         if (ec->common.global_lock)
                 acpi_release_global_lock(glk);
 
-        return_VALUE(result);
+        return result;
 }
 static int acpi_ec_intr_query(union acpi_ec *ec, u32 * data)
 {
         int status = 0;
         u32 glk;
 
-        ACPI_FUNCTION_TRACE("acpi_ec_query");
 
         if (!ec || !data)
-                return_VALUE(-EINVAL);
+                return -EINVAL;
         *data = 0;
 
         if (ec->common.global_lock) {
                 status = acpi_acquire_global_lock(ACPI_EC_UDELAY_GLK, &glk);
                 if (ACPI_FAILURE(status))
-                        return_VALUE(-ENODEV);
+                        return -ENODEV;
         }
 
         down(&ec->intr.sem);
@@ -662,7 +653,7 @@ static int acpi_ec_intr_query(union acpi_ec *ec, u32 * data)
         if (ec->common.global_lock)
                 acpi_release_global_lock(glk);
 
-        return_VALUE(status);
+        return status;
 }
 
 /* --------------------------------------------------------------------------
@@ -691,13 +682,12 @@ static void acpi_ec_gpe_poll_query(void *ec_cxt)
                 '8', '9', 'A', 'B', 'C', 'D', 'E', 'F'
         };
 
-        ACPI_FUNCTION_TRACE("acpi_ec_gpe_query");
 
         if (!ec_cxt)
                 goto end;
 
         if (down_interruptible (&ec->poll.sem)) {
-                return_VOID;
+                return;
         }
         acpi_hw_low_level_read(8, &value, &ec->common.command_addr);
         up(&ec->poll.sem);
@@ -734,7 +724,6 @@ static void acpi_ec_gpe_intr_query(void *ec_cxt)
                 '8', '9', 'A', 'B', 'C', 'D', 'E', 'F'
         };
 
-        ACPI_FUNCTION_TRACE("acpi_ec_gpe_query");
 
         if (acpi_ec_read_status(ec) & ACPI_EC_FLAG_SCI)
                 result = acpi_ec_query(ec, &value);
@@ -793,12 +782,15 @@ static u32 acpi_ec_gpe_intr_handler(void *data)
         case ACPI_EC_EVENT_OBF:
                 if (!(value & ACPI_EC_FLAG_OBF))
                         break;
+                ec->intr.expect_event = 0;
+                wake_up(&ec->intr.wait);
+                break;
         case ACPI_EC_EVENT_IBE:
                 if ((value & ACPI_EC_FLAG_IBF))
                         break;
                 ec->intr.expect_event = 0;
                 wake_up(&ec->intr.wait);
-                return ACPI_INTERRUPT_HANDLED;
+                break;
         default:
                 break;
         }
@@ -846,15 +838,14 @@ acpi_ec_space_handler(u32 function,
         acpi_integer f_v = 0;
         int i = 0;
 
-        ACPI_FUNCTION_TRACE("acpi_ec_space_handler");
 
         if ((address > 0xFF) || !value || !handler_context)
-                return_VALUE(AE_BAD_PARAMETER);
+                return AE_BAD_PARAMETER;
 
         if (bit_width != 8 && acpi_strict) {
                 printk(KERN_WARNING PREFIX
                        "acpi_ec_space_handler: bit_width should be 8\n");
-                return_VALUE(AE_BAD_PARAMETER);
+                return AE_BAD_PARAMETER;
         }
 
         ec = (union acpi_ec *)handler_context;
@@ -893,16 +884,16 @@ acpi_ec_space_handler(u32 function,
       out:
         switch (result) {
         case -EINVAL:
-                return_VALUE(AE_BAD_PARAMETER);
+                return AE_BAD_PARAMETER;
                 break;
         case -ENODEV:
-                return_VALUE(AE_NOT_FOUND);
+                return AE_NOT_FOUND;
                 break;
         case -ETIME:
-                return_VALUE(AE_TIME);
+                return AE_TIME;
                 break;
         default:
-                return_VALUE(AE_OK);
+                return AE_OK;
         }
 }
 
@@ -916,7 +907,6 @@ static int acpi_ec_read_info(struct seq_file *seq, void *offset)
 {
         union acpi_ec *ec = (union acpi_ec *)seq->private;
 
-        ACPI_FUNCTION_TRACE("acpi_ec_read_info");
 
         if (!ec)
                 goto end;
@@ -931,7 +921,7 @@ static int acpi_ec_read_info(struct seq_file *seq, void *offset)
         acpi_enable_gpe(NULL, ec->common.gpe_bit, ACPI_NOT_ISR);
 
       end:
-        return_VALUE(0);
+        return 0;
 }
 
 static int acpi_ec_info_open_fs(struct inode *inode, struct file *file)
@@ -951,33 +941,29 @@ static int acpi_ec_add_fs(struct acpi_device *device)
 {
         struct proc_dir_entry *entry = NULL;
 
-        ACPI_FUNCTION_TRACE("acpi_ec_add_fs");
 
         if (!acpi_device_dir(device)) {
                 acpi_device_dir(device) = proc_mkdir(acpi_device_bid(device),
                                                      acpi_ec_dir);
                 if (!acpi_device_dir(device))
-                        return_VALUE(-ENODEV);
+                        return -ENODEV;
         }
 
         entry = create_proc_entry(ACPI_EC_FILE_INFO, S_IRUGO,
                                   acpi_device_dir(device));
         if (!entry)
-                ACPI_DEBUG_PRINT((ACPI_DB_WARN,
-                                  "Unable to create '%s' fs entry\n",
-                                  ACPI_EC_FILE_INFO));
+                return -ENODEV;
         else {
                 entry->proc_fops = &acpi_ec_info_ops;
                 entry->data = acpi_driver_data(device);
                 entry->owner = THIS_MODULE;
         }
 
-        return_VALUE(0);
+        return 0;
 }
 
 static int acpi_ec_remove_fs(struct acpi_device *device)
 {
-        ACPI_FUNCTION_TRACE("acpi_ec_remove_fs");
 
         if (acpi_device_dir(device)) {
                 remove_proc_entry(ACPI_EC_FILE_INFO, acpi_device_dir(device));
@@ -985,7 +971,7 @@ static int acpi_ec_remove_fs(struct acpi_device *device)
                 acpi_device_dir(device) = NULL;
         }
 
-        return_VALUE(0);
+        return 0;
 }
 
 /* --------------------------------------------------------------------------
@@ -998,14 +984,13 @@ static int acpi_ec_poll_add(struct acpi_device *device)
         acpi_status status = AE_OK;
         union acpi_ec *ec = NULL;
 
-        ACPI_FUNCTION_TRACE("acpi_ec_add");
 
         if (!device)
-                return_VALUE(-EINVAL);
+                return -EINVAL;
 
         ec = kmalloc(sizeof(union acpi_ec), GFP_KERNEL);
         if (!ec)
-                return_VALUE(-ENOMEM);
+                return -ENOMEM;
         memset(ec, 0, sizeof(union acpi_ec));
 
         ec->common.handle = device->handle;
@@ -1038,8 +1023,7 @@ static int acpi_ec_poll_add(struct acpi_device *device)
             acpi_evaluate_integer(ec->common.handle, "_GPE", NULL,
                                   &ec->common.gpe_bit);
         if (ACPI_FAILURE(status)) {
-                ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
-                                  "Error obtaining GPE bit assignment\n"));
+                ACPI_EXCEPTION((AE_INFO, status, "Obtaining GPE bit"));
                 result = -ENODEV;
                 goto end;
         }
@@ -1059,7 +1043,7 @@ static int acpi_ec_poll_add(struct acpi_device *device)
         if (result)
                 kfree(ec);
 
-        return_VALUE(result);
+        return result;
 }
 static int acpi_ec_intr_add(struct acpi_device *device)
 {
@@ -1067,14 +1051,13 @@ static int acpi_ec_intr_add(struct acpi_device *device)
         acpi_status status = AE_OK;
         union acpi_ec *ec = NULL;
 
-        ACPI_FUNCTION_TRACE("acpi_ec_add");
 
         if (!device)
-                return_VALUE(-EINVAL);
+                return -EINVAL;
 
         ec = kmalloc(sizeof(union acpi_ec), GFP_KERNEL);
         if (!ec)
-                return_VALUE(-ENOMEM);
+                return -ENOMEM;
         memset(ec, 0, sizeof(union acpi_ec));
 
         ec->common.handle = device->handle;
@@ -1110,8 +1093,7 @@ static int acpi_ec_intr_add(struct acpi_device *device)
             acpi_evaluate_integer(ec->common.handle, "_GPE", NULL,
                                   &ec->common.gpe_bit);
         if (ACPI_FAILURE(status)) {
-                ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
-                                  "Error obtaining GPE bit assignment\n"));
+                printk(KERN_ERR PREFIX "Obtaining GPE bit assignment\n");
                 result = -ENODEV;
                 goto end;
         }
@@ -1131,17 +1113,16 @@ static int acpi_ec_intr_add(struct acpi_device *device)
         if (result)
                 kfree(ec);
 
-        return_VALUE(result);
+        return result;
 }
 
 static int acpi_ec_remove(struct acpi_device *device, int type)
 {
         union acpi_ec *ec = NULL;
 
-        ACPI_FUNCTION_TRACE("acpi_ec_remove");
 
         if (!device)
-                return_VALUE(-EINVAL);
+                return -EINVAL;
 
         ec = acpi_driver_data(device);
 
@@ -1149,7 +1130,7 @@ static int acpi_ec_remove(struct acpi_device *device, int type)
 
         kfree(ec);
 
-        return_VALUE(0);
+        return 0;
 }
 
 static acpi_status
@@ -1188,15 +1169,14 @@ static int acpi_ec_start(struct acpi_device *device)
         acpi_status status = AE_OK;
         union acpi_ec *ec = NULL;
 
-        ACPI_FUNCTION_TRACE("acpi_ec_start");
 
         if (!device)
-                return_VALUE(-EINVAL);
+                return -EINVAL;
 
         ec = acpi_driver_data(device);
 
         if (!ec)
-                return_VALUE(-EINVAL);
+                return -EINVAL;
 
         /*
          * Get I/O port addresses. Convert to GAS format.
@@ -1205,9 +1185,8 @@ static int acpi_ec_start(struct acpi_device *device)
                                      acpi_ec_io_ports, ec);
         if (ACPI_FAILURE(status)
             || ec->common.command_addr.register_bit_width == 0) {
-                ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
-                                  "Error getting I/O port addresses"));
-                return_VALUE(-ENODEV);
+                printk(KERN_ERR PREFIX "Error getting I/O port addresses\n");
+                return -ENODEV;
         }
 
         ec->common.status_addr = ec->common.command_addr;
@@ -1224,7 +1203,7 @@ static int acpi_ec_start(struct acpi_device *device)
                                           ACPI_GPE_EDGE_TRIGGERED,
                                           &acpi_ec_gpe_handler, ec);
         if (ACPI_FAILURE(status)) {
-                return_VALUE(-ENODEV);
+                return -ENODEV;
         }
         acpi_set_gpe_type(NULL, ec->common.gpe_bit, ACPI_GPE_TYPE_RUNTIME);
         acpi_enable_gpe(NULL, ec->common.gpe_bit, ACPI_NOT_ISR);
@@ -1236,10 +1215,10 @@ static int acpi_ec_start(struct acpi_device *device)
         if (ACPI_FAILURE(status)) {
                 acpi_remove_gpe_handler(NULL, ec->common.gpe_bit,
                                         &acpi_ec_gpe_handler);
-                return_VALUE(-ENODEV);
+                return -ENODEV;
         }
 
-        return_VALUE(AE_OK);
+        return AE_OK;
 }
 
 static int acpi_ec_stop(struct acpi_device *device, int type)
@@ -1247,10 +1226,9 @@ static int acpi_ec_stop(struct acpi_device *device, int type)
         acpi_status status = AE_OK;
         union acpi_ec *ec = NULL;
 
-        ACPI_FUNCTION_TRACE("acpi_ec_stop");
 
         if (!device)
-                return_VALUE(-EINVAL);
+                return -EINVAL;
 
         ec = acpi_driver_data(device);
 
@@ -1258,15 +1236,15 @@ static int acpi_ec_stop(struct acpi_device *device, int type)
                                                    ACPI_ADR_SPACE_EC,
                                                    &acpi_ec_space_handler);
         if (ACPI_FAILURE(status))
-                return_VALUE(-ENODEV);
+                return -ENODEV;
 
         status =
             acpi_remove_gpe_handler(NULL, ec->common.gpe_bit,
                                     &acpi_ec_gpe_handler);
         if (ACPI_FAILURE(status))
-                return_VALUE(-ENODEV);
+                return -ENODEV;
 
-        return_VALUE(0);
+        return 0;
 }
 
 static acpi_status __init
@@ -1536,23 +1514,22 @@ static int __init acpi_ec_init(void)
 {
         int result = 0;
 
-        ACPI_FUNCTION_TRACE("acpi_ec_init");
 
         if (acpi_disabled)
-                return_VALUE(0);
+                return 0;
 
         acpi_ec_dir = proc_mkdir(ACPI_EC_CLASS, acpi_root_dir);
         if (!acpi_ec_dir)
-                return_VALUE(-ENODEV);
+                return -ENODEV;
 
         /* Now register the driver for the EC */
         result = acpi_bus_register_driver(&acpi_ec_driver);
         if (result < 0) {
                 remove_proc_entry(ACPI_EC_CLASS, acpi_root_dir);
-                return_VALUE(-ENODEV);
+                return -ENODEV;
         }
 
-        return_VALUE(result);
+        return result;
 }
 
 subsys_initcall(acpi_ec_init);
@@ -1561,13 +1538,12 @@ subsys_initcall(acpi_ec_init);
 #if 0
 static void __exit acpi_ec_exit(void)
 {
-        ACPI_FUNCTION_TRACE("acpi_ec_exit");
 
         acpi_bus_unregister_driver(&acpi_ec_driver);
 
         remove_proc_entry(ACPI_EC_CLASS, acpi_root_dir);
 
-        return_VOID;
+        return;
 }
 #endif                          /* 0 */