From 869fd5023a719a8d2af602ce95afba98751c33fc Mon Sep 17 00:00:00 2001 From: Roman Kiryanov Date: Mon, 27 Aug 2018 11:23:02 -0700 Subject: [PATCH] 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 Signed-off-by: Greg Kroah-Hartman --- drivers/platform/goldfish/goldfish_pipe.c | 28 +++++++++++++--------------- 1 file changed, 13 insertions(+), 15 deletions(-) diff --git a/drivers/platform/goldfish/goldfish_pipe.c b/drivers/platform/goldfish/goldfish_pipe.c index 24e40de..e9e3e79 100644 --- a/drivers/platform/goldfish/goldfish_pipe.c +++ b/drivers/platform/goldfish/goldfish_pipe.c @@ -205,7 +205,7 @@ struct goldfish_pipe_dev { unsigned char __iomem *base; }; -static struct goldfish_pipe_dev pipe_dev[1] = {}; +struct goldfish_pipe_dev goldfish_pipe_dev; static int goldfish_cmd_locked(struct goldfish_pipe *pipe, enum PipeCmdCode cmd) { @@ -564,12 +564,12 @@ static struct goldfish_pipe *signalled_pipes_pop_front( static void goldfish_interrupt_task(unsigned long unused) { - struct goldfish_pipe_dev *dev = pipe_dev; /* Iterate over the signalled pipes and wake them one by one */ struct goldfish_pipe *pipe; int wakes; - while ((pipe = signalled_pipes_pop_front(dev, &wakes)) != NULL) { + while ((pipe = signalled_pipes_pop_front(&goldfish_pipe_dev, &wakes)) != + NULL) { if (wakes & PIPE_WAKE_CLOSED) { pipe->flags = 1 << BIT_CLOSED_ON_HOST; } else { @@ -607,7 +607,7 @@ static irqreturn_t goldfish_pipe_interrupt(int irq, void *dev_id) unsigned long flags; struct goldfish_pipe_dev *dev = dev_id; - if (dev != pipe_dev) + if (dev != &goldfish_pipe_dev) return IRQ_NONE; /* Request the signalled pipes from the device */ @@ -672,7 +672,7 @@ static int get_free_pipe_id_locked(struct goldfish_pipe_dev *dev) */ static int goldfish_pipe_open(struct inode *inode, struct file *file) { - struct goldfish_pipe_dev *dev = pipe_dev; + struct goldfish_pipe_dev *dev = &goldfish_pipe_dev; unsigned long flags; int id; int status; @@ -763,7 +763,7 @@ static const struct file_operations goldfish_pipe_fops = { .release = goldfish_pipe_release, }; -static struct miscdevice goldfish_pipe_dev = { +static struct miscdevice goldfish_pipe_miscdev = { .minor = MISC_DYNAMIC_MINOR, .name = "goldfish_pipe", .fops = &goldfish_pipe_fops, @@ -771,8 +771,8 @@ static struct miscdevice goldfish_pipe_dev = { static int goldfish_pipe_device_init(struct platform_device *pdev) { + struct goldfish_pipe_dev *dev = &goldfish_pipe_dev; char *page; - struct goldfish_pipe_dev *dev = pipe_dev; int err = devm_request_irq(&pdev->dev, dev->irq, goldfish_pipe_interrupt, IRQF_SHARED, "goldfish_pipe", dev); @@ -781,7 +781,7 @@ static int goldfish_pipe_device_init(struct platform_device *pdev) return err; } - err = misc_register(&goldfish_pipe_dev); + err = misc_register(&goldfish_pipe_miscdev); if (err) { dev_err(&pdev->dev, "unable to register v2 device\n"); return err; @@ -830,18 +830,16 @@ static int goldfish_pipe_device_init(struct platform_device *pdev) static void goldfish_pipe_device_deinit(struct platform_device *pdev) { - struct goldfish_pipe_dev *dev = pipe_dev; - - misc_deregister(&goldfish_pipe_dev); - kfree(dev->pipes); - free_page((unsigned long)dev->buffers); + misc_deregister(&goldfish_pipe_miscdev); + kfree(goldfish_pipe_dev.pipes); + free_page((unsigned long)goldfish_pipe_dev.buffers); } static int goldfish_pipe_probe(struct platform_device *pdev) { int err; struct resource *r; - struct goldfish_pipe_dev *dev = pipe_dev; + struct goldfish_pipe_dev *dev = &goldfish_pipe_dev; /* not thread safe, but this should not happen */ WARN_ON(dev->base != NULL); @@ -889,7 +887,7 @@ error: static int goldfish_pipe_remove(struct platform_device *pdev) { - struct goldfish_pipe_dev *dev = pipe_dev; + struct goldfish_pipe_dev *dev = &goldfish_pipe_dev; goldfish_pipe_device_deinit(pdev); dev->base = NULL; return 0; -- 2.7.4