ACPI / EC: Cleanup coding style.

This patch cleans up the following coding style issues that are detected by
scripts/checkpatch.pl:
 ERROR: code indent should use tabs where possible
 ERROR: "foo * bar" should be "foo *bar"
 WARNING: Missing a blank line after declarations
 WARNING: EXPORT_SYMBOL(foo); should immediately follow its function/variable
 WARNING: void function return statements are not generally useful
 WARNING: else is not generally useful after a break or return
 WARNING: break is not useful after a goto or return
 WARNING: braces {} are not necessary for single statement blocks
 WARNING: line over 80 characters
 WARNING: msleep < 20ms can sleep for up to 20ms; see Documentation/timers/timers-howto.txt
No functional changes.

Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c
index d0247d38d96fcd9970cad608af3cdf4a1192665d..3d304ff7f0957e1661329239db02d27a15e94a2c 100644 (file)
--- a/drivers/acpi/ec.c
+++ b/drivers/acpi/ec.c
@@ -128,12 +128,13 @@ static int EC_FLAGS_SKIP_DSDT_SCAN; /* Not all BIOS survive early DSDT scan */
 static int EC_FLAGS_CLEAR_ON_RESUME; /* Needs acpi_ec_clear() on boot/resume */
 
 /* --------------------------------------------------------------------------
-                             Transaction Management
-   -------------------------------------------------------------------------- */
+ *                           Transaction Management
+ * -------------------------------------------------------------------------- */
 
 static inline u8 acpi_ec_read_status(struct acpi_ec *ec)
 {
        u8 x = inb(ec->command_addr);
+
        pr_debug("EC_SC(R) = 0x%2.2x "
                 "SCI_EVT=%d BURST=%d CMD=%d IBF=%d OBF=%d\n",
                 x,
@@ -148,6 +149,7 @@ static inline u8 acpi_ec_read_status(struct acpi_ec *ec)
 static inline u8 acpi_ec_read_data(struct acpi_ec *ec)
 {
        u8 x = inb(ec->data_addr);
+
        pr_debug("EC_DATA(R) = 0x%2.2x\n", x);
        return x;
 }
@@ -189,6 +191,7 @@ static int ec_transaction_completed(struct acpi_ec *ec)
 {
        unsigned long flags;
        int ret = 0;
+
        spin_lock_irqsave(&ec->lock, flags);
        if (ec->curr && (ec->curr->flags & ACPI_EC_COMMAND_COMPLETE))
                ret = 1;
@@ -288,6 +291,7 @@ static int ec_poll(struct acpi_ec *ec)
 {
        unsigned long flags;
        int repeat = 5; /* number of command restarts */
+
        while (repeat--) {
                unsigned long delay = jiffies +
                        msecs_to_jiffies(ec_delay);
@@ -320,6 +324,7 @@ static int acpi_ec_transaction_unlocked(struct acpi_ec *ec,
 {
        unsigned long tmp;
        int ret = 0;
+
        if (EC_FLAGS_MSI)
                udelay(ACPI_EC_MSI_UDELAY);
        /* start transaction */
@@ -347,6 +352,7 @@ static int acpi_ec_transaction(struct acpi_ec *ec, struct transaction *t)
 {
        int status;
        u32 glk;
+
        if (!ec || (!t) || (t->wlen && !t->wdata) || (t->rlen && !t->rdata))
                return -EINVAL;
        if (t->rdata)
@@ -410,7 +416,7 @@ static int acpi_ec_burst_disable(struct acpi_ec *ec)
                                acpi_ec_transaction(ec, &t) : 0;
 }
 
-static int acpi_ec_read(struct acpi_ec *ec, u8 address, u8 * data)
+static int acpi_ec_read(struct acpi_ec *ec, u8 address, u8 *data)
 {
        int result;
        u8 d;
@@ -446,10 +452,9 @@ int ec_read(u8 addr, u8 *val)
        if (!err) {
                *val = temp_data;
                return 0;
-       } else
-               return err;
+       }
+       return err;
 }
-
 EXPORT_SYMBOL(ec_read);
 
 int ec_write(u8 addr, u8 val)
@@ -463,22 +468,21 @@ int ec_write(u8 addr, u8 val)
 
        return err;
 }
-
 EXPORT_SYMBOL(ec_write);
 
 int ec_transaction(u8 command,
-                  const u8 * wdata, unsigned wdata_len,
-                  u8 * rdata, unsigned rdata_len)
+                  const u8 *wdata, unsigned wdata_len,
+                  u8 *rdata, unsigned rdata_len)
 {
        struct transaction t = {.command = command,
                                .wdata = wdata, .rdata = rdata,
                                .wlen = wdata_len, .rlen = rdata_len};
+
        if (!first_ec)
                return -ENODEV;
 
        return acpi_ec_transaction(first_ec, &t);
 }
-
 EXPORT_SYMBOL(ec_transaction);
 
 /* Get the handle to the EC device */
@@ -488,7 +492,6 @@ acpi_handle ec_get_handle(void)
                return NULL;
        return first_ec->handle;
 }
-
 EXPORT_SYMBOL(ec_get_handle);
 
 /*
@@ -552,13 +555,14 @@ void acpi_ec_unblock_transactions_early(void)
                clear_bit(EC_FLAGS_BLOCKED, &first_ec->flags);
 }
 
-static int acpi_ec_query_unlocked(struct acpi_ec *ec, u8 * data)
+static int acpi_ec_query_unlocked(struct acpi_ec *ec, u8 *data)
 {
        int result;
        u8 d;
        struct transaction t = {.command = ACPI_EC_COMMAND_QUERY,
                                .wdata = NULL, .rdata = &d,
                                .wlen = 0, .rlen = 1};
+
        if (!ec || !data)
                return -EINVAL;
        /*
@@ -584,6 +588,7 @@ int acpi_ec_add_query_handler(struct acpi_ec *ec, u8 query_bit,
 {
        struct acpi_ec_query_handler *handler =
            kzalloc(sizeof(struct acpi_ec_query_handler), GFP_KERNEL);
+
        if (!handler)
                return -ENOMEM;
 
@@ -596,12 +601,12 @@ int acpi_ec_add_query_handler(struct acpi_ec *ec, u8 query_bit,
        mutex_unlock(&ec->mutex);
        return 0;
 }
-
 EXPORT_SYMBOL_GPL(acpi_ec_add_query_handler);
 
 void acpi_ec_remove_query_handler(struct acpi_ec *ec, u8 query_bit)
 {
        struct acpi_ec_query_handler *handler, *tmp;
+
        mutex_lock(&ec->mutex);
        list_for_each_entry_safe(handler, tmp, &ec->list, node) {
                if (query_bit == handler->query_bit) {
@@ -611,12 +616,12 @@ void acpi_ec_remove_query_handler(struct acpi_ec *ec, u8 query_bit)
        }
        mutex_unlock(&ec->mutex);
 }
-
 EXPORT_SYMBOL_GPL(acpi_ec_remove_query_handler);
 
 static void acpi_ec_run(void *cxt)
 {
        struct acpi_ec_query_handler *handler = cxt;
+
        if (!handler)
                return;
        pr_debug("##### Query(0x%02x) started #####\n", handler->query_bit);
@@ -660,6 +665,7 @@ static int acpi_ec_sync_query(struct acpi_ec *ec, u8 *data)
 static void acpi_ec_gpe_query(void *ec_cxt)
 {
        struct acpi_ec *ec = ec_cxt;
+
        if (!ec)
                return;
        mutex_lock(&ec->mutex);
@@ -694,8 +700,8 @@ static u32 acpi_ec_gpe_handler(acpi_handle gpe_device,
 }
 
 /* --------------------------------------------------------------------------
-                             Address Space Management
-   -------------------------------------------------------------------------- */
+ *                           Address Space Management
+ * -------------------------------------------------------------------------- */
 
 static acpi_status
 acpi_ec_space_handler(u32 function, acpi_physical_address address,
@@ -726,27 +732,26 @@ acpi_ec_space_handler(u32 function, acpi_physical_address address,
        switch (result) {
        case -EINVAL:
                return AE_BAD_PARAMETER;
-               break;
        case -ENODEV:
                return AE_NOT_FOUND;
-               break;
        case -ETIME:
                return AE_TIME;
-               break;
        default:
                return AE_OK;
        }
 }
 
 /* --------------------------------------------------------------------------
-                               Driver Interface
-   -------------------------------------------------------------------------- */
+ *                             Driver Interface
+ * -------------------------------------------------------------------------- */
+
 static acpi_status
 ec_parse_io_ports(struct acpi_resource *resource, void *context);
 
 static struct acpi_ec *make_acpi_ec(void)
 {
        struct acpi_ec *ec = kzalloc(sizeof(struct acpi_ec), GFP_KERNEL);
+
        if (!ec)
                return NULL;
        ec->flags = 1 << EC_FLAGS_QUERY_PENDING;
@@ -769,9 +774,8 @@ acpi_ec_register_query_methods(acpi_handle handle, u32 level,
 
        status = acpi_get_name(handle, ACPI_SINGLE_NAME, &buffer);
 
-       if (ACPI_SUCCESS(status) && sscanf(node_name, "_Q%x", &value) == 1) {
+       if (ACPI_SUCCESS(status) && sscanf(node_name, "_Q%x", &value) == 1)
                acpi_ec_add_query_handler(ec, value, handle, NULL, NULL);
-       }
        return AE_OK;
 }
 
@@ -780,7 +784,6 @@ ec_parse_device(acpi_handle handle, u32 Level, void *context, void **retval)
 {
        acpi_status status;
        unsigned long long tmp = 0;
-
        struct acpi_ec *ec = context;
 
        /* clear addr values, ec_parse_io_ports depend on it */
@@ -808,6 +811,7 @@ ec_parse_device(acpi_handle handle, u32 Level, void *context, void **retval)
 static int ec_install_handlers(struct acpi_ec *ec)
 {
        acpi_status status;
+
        if (test_bit(EC_FLAGS_HANDLERS_INSTALLED, &ec->flags))
                return 0;
        status = acpi_install_gpe_handler(NULL, ec->gpe,
@@ -1105,7 +1109,8 @@ int __init acpi_ec_ecdt_probe(void)
                boot_ec->data_addr = ecdt_ptr->data.address;
                boot_ec->gpe = ecdt_ptr->gpe;
                boot_ec->handle = ACPI_ROOT_OBJECT;
-               acpi_get_handle(ACPI_ROOT_OBJECT, ecdt_ptr->id, &boot_ec->handle);
+               acpi_get_handle(ACPI_ROOT_OBJECT, ecdt_ptr->id,
+                               &boot_ec->handle);
                /* Don't trust ECDT, which comes from ASUSTek */
                if (!EC_FLAGS_VALIDATE_ECDT)
                        goto install;
@@ -1189,6 +1194,5 @@ static void __exit acpi_ec_exit(void)
 {
 
        acpi_bus_unregister_driver(&acpi_ec_driver);
-       return;
 }
 #endif /* 0 */