staging: gasket: core: Fix a coding style issue in gasket_core.c

A coding alignment issue is found by checkpatch.pl.
Fix it by using a temporary for gasket_dev->bar_data[bar_num].

Signed-off-by: Zhixu Zhao <zhixu001@126.com>
Link: https://lore.kernel.org/r/20200715133313.16327-1-zhixu001@126.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/staging/gasket/gasket_core.c b/drivers/staging/gasket/gasket_core.c
index 67325fb..28dab30 100644 (file)
--- a/drivers/staging/gasket/gasket_core.c
+++ b/drivers/staging/gasket/gasket_core.c
@@ -261,6 +261,7 @@ static int gasket_map_pci_bar(struct gasket_dev *gasket_dev, int bar_num)
        const struct gasket_driver_desc *driver_desc =
                internal_desc->driver_desc;
        ulong desc_bytes = driver_desc->bar_descriptions[bar_num].size;
+       struct gasket_bar_data *data;
        int ret;
 
        if (desc_bytes == 0)
@@ -270,31 +271,32 @@ static int gasket_map_pci_bar(struct gasket_dev *gasket_dev, int bar_num)
                /* not PCI: skip this entry */
                return 0;
        }
+
+       data = &gasket_dev->bar_data[bar_num];
+
        /*
         * pci_resource_start and pci_resource_len return a "resource_size_t",
         * which is safely castable to ulong (which itself is the arg to
         * request_mem_region).
         */
-       gasket_dev->bar_data[bar_num].phys_base =
+       data->phys_base =
                (ulong)pci_resource_start(gasket_dev->pci_dev, bar_num);
-       if (!gasket_dev->bar_data[bar_num].phys_base) {
+       if (!data->phys_base) {
                dev_err(gasket_dev->dev, "Cannot get BAR%u base address\n",
                        bar_num);
                return -EINVAL;
        }
 
-       gasket_dev->bar_data[bar_num].length_bytes =
+       data->length_bytes =
                (ulong)pci_resource_len(gasket_dev->pci_dev, bar_num);
-       if (gasket_dev->bar_data[bar_num].length_bytes < desc_bytes) {
+       if (data->length_bytes < desc_bytes) {
                dev_err(gasket_dev->dev,
                        "PCI BAR %u space is too small: %lu; expected >= %lu\n",
-                       bar_num, gasket_dev->bar_data[bar_num].length_bytes,
-                       desc_bytes);
+                       bar_num, data->length_bytes, desc_bytes);
                return -ENOMEM;
        }
 
-       if (!request_mem_region(gasket_dev->bar_data[bar_num].phys_base,
-                               gasket_dev->bar_data[bar_num].length_bytes,
+       if (!request_mem_region(data->phys_base, data->length_bytes,
                                gasket_dev->dev_info.name)) {
                dev_err(gasket_dev->dev,
                        "Cannot get BAR %d memory region %p\n",
@@ -302,10 +304,8 @@ static int gasket_map_pci_bar(struct gasket_dev *gasket_dev, int bar_num)
                return -EINVAL;
        }
 
-       gasket_dev->bar_data[bar_num].virt_base =
-               ioremap(gasket_dev->bar_data[bar_num].phys_base,
-                               gasket_dev->bar_data[bar_num].length_bytes);
-       if (!gasket_dev->bar_data[bar_num].virt_base) {
+       data->virt_base = ioremap(data->phys_base, data->length_bytes);
+       if (!data->virt_base) {
                dev_err(gasket_dev->dev,
                        "Cannot remap BAR %d memory region %p\n",
                        bar_num, &gasket_dev->pci_dev->resource[bar_num]);
@@ -319,9 +319,8 @@ static int gasket_map_pci_bar(struct gasket_dev *gasket_dev, int bar_num)
        return 0;
 
 fail:
-       iounmap(gasket_dev->bar_data[bar_num].virt_base);
-       release_mem_region(gasket_dev->bar_data[bar_num].phys_base,
-                          gasket_dev->bar_data[bar_num].length_bytes);
+       iounmap(data->virt_base);
+       release_mem_region(data->phys_base, data->length_bytes);
        return ret;
 }