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platform: goldfish: pipe: Replace an array of 1 with a variable
There is no reason to have an array of 1. Signed-off-by: Roman Kiryanov <rkir@google.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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@ -205,7 +205,7 @@ struct goldfish_pipe_dev {
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unsigned char __iomem *base;
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};
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static struct goldfish_pipe_dev pipe_dev[1] = {};
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struct goldfish_pipe_dev goldfish_pipe_dev;
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static int goldfish_cmd_locked(struct goldfish_pipe *pipe, enum PipeCmdCode cmd)
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{
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@ -564,12 +564,12 @@ static struct goldfish_pipe *signalled_pipes_pop_front(
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static void goldfish_interrupt_task(unsigned long unused)
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{
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struct goldfish_pipe_dev *dev = pipe_dev;
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/* Iterate over the signalled pipes and wake them one by one */
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struct goldfish_pipe *pipe;
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int wakes;
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while ((pipe = signalled_pipes_pop_front(dev, &wakes)) != NULL) {
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while ((pipe = signalled_pipes_pop_front(&goldfish_pipe_dev, &wakes)) !=
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NULL) {
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if (wakes & PIPE_WAKE_CLOSED) {
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pipe->flags = 1 << BIT_CLOSED_ON_HOST;
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} else {
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@ -607,7 +607,7 @@ static irqreturn_t goldfish_pipe_interrupt(int irq, void *dev_id)
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unsigned long flags;
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struct goldfish_pipe_dev *dev = dev_id;
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if (dev != pipe_dev)
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if (dev != &goldfish_pipe_dev)
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return IRQ_NONE;
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/* Request the signalled pipes from the device */
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@ -672,7 +672,7 @@ static int get_free_pipe_id_locked(struct goldfish_pipe_dev *dev)
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*/
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static int goldfish_pipe_open(struct inode *inode, struct file *file)
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{
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struct goldfish_pipe_dev *dev = pipe_dev;
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struct goldfish_pipe_dev *dev = &goldfish_pipe_dev;
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unsigned long flags;
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int id;
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int status;
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@ -763,7 +763,7 @@ static const struct file_operations goldfish_pipe_fops = {
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.release = goldfish_pipe_release,
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};
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static struct miscdevice goldfish_pipe_dev = {
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static struct miscdevice goldfish_pipe_miscdev = {
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.minor = MISC_DYNAMIC_MINOR,
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.name = "goldfish_pipe",
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.fops = &goldfish_pipe_fops,
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@ -771,8 +771,8 @@ static struct miscdevice goldfish_pipe_dev = {
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static int goldfish_pipe_device_init(struct platform_device *pdev)
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{
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struct goldfish_pipe_dev *dev = &goldfish_pipe_dev;
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char *page;
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struct goldfish_pipe_dev *dev = pipe_dev;
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int err = devm_request_irq(&pdev->dev, dev->irq,
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goldfish_pipe_interrupt,
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IRQF_SHARED, "goldfish_pipe", dev);
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@ -781,7 +781,7 @@ static int goldfish_pipe_device_init(struct platform_device *pdev)
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return err;
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}
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err = misc_register(&goldfish_pipe_dev);
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err = misc_register(&goldfish_pipe_miscdev);
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if (err) {
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dev_err(&pdev->dev, "unable to register v2 device\n");
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return err;
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@ -830,18 +830,16 @@ static int goldfish_pipe_device_init(struct platform_device *pdev)
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static void goldfish_pipe_device_deinit(struct platform_device *pdev)
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{
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struct goldfish_pipe_dev *dev = pipe_dev;
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misc_deregister(&goldfish_pipe_dev);
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kfree(dev->pipes);
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free_page((unsigned long)dev->buffers);
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misc_deregister(&goldfish_pipe_miscdev);
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kfree(goldfish_pipe_dev.pipes);
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free_page((unsigned long)goldfish_pipe_dev.buffers);
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}
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static int goldfish_pipe_probe(struct platform_device *pdev)
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{
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int err;
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struct resource *r;
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struct goldfish_pipe_dev *dev = pipe_dev;
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struct goldfish_pipe_dev *dev = &goldfish_pipe_dev;
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/* not thread safe, but this should not happen */
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WARN_ON(dev->base != NULL);
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@ -889,7 +887,7 @@ error:
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static int goldfish_pipe_remove(struct platform_device *pdev)
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{
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struct goldfish_pipe_dev *dev = pipe_dev;
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struct goldfish_pipe_dev *dev = &goldfish_pipe_dev;
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goldfish_pipe_device_deinit(pdev);
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dev->base = NULL;
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return 0;
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