5.4-stable review patch. If anyone has any objections, please let me know.
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From: Bartosz Golaszewski bartosz.golaszewski@linaro.org
[ Upstream commit d036ae41cebdfae92666024163c109b8fef516fa ]
Instead of dereferencing the platform device pointer repeatedly, just store its address in a helper variable.
Link: https://lore.kernel.org/r/20241015131832.44678-3-brgl@bgdev.pl Signed-off-by: Bartosz Golaszewski bartosz.golaszewski@linaro.org Stable-dep-of: 050b23d081da ("gpio: grgpio: Add NULL check in grgpio_probe") Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/gpio/gpio-grgpio.c | 23 ++++++++++++----------- 1 file changed, 12 insertions(+), 11 deletions(-)
diff --git a/drivers/gpio/gpio-grgpio.c b/drivers/gpio/gpio-grgpio.c index 3224933f4c8f4..62ba651fef658 100644 --- a/drivers/gpio/gpio-grgpio.c +++ b/drivers/gpio/gpio-grgpio.c @@ -328,6 +328,7 @@ static const struct irq_domain_ops grgpio_irq_domain_ops = { static int grgpio_probe(struct platform_device *ofdev) { struct device_node *np = ofdev->dev.of_node; + struct device *dev = &ofdev->dev; void __iomem *regs; struct gpio_chip *gc; struct grgpio_priv *priv; @@ -337,7 +338,7 @@ static int grgpio_probe(struct platform_device *ofdev) int size; int i;
- priv = devm_kzalloc(&ofdev->dev, sizeof(*priv), GFP_KERNEL); + priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL); if (!priv) return -ENOMEM;
@@ -346,29 +347,29 @@ static int grgpio_probe(struct platform_device *ofdev) return PTR_ERR(regs);
gc = &priv->gc; - err = bgpio_init(gc, &ofdev->dev, 4, regs + GRGPIO_DATA, + err = bgpio_init(gc, dev, 4, regs + GRGPIO_DATA, regs + GRGPIO_OUTPUT, NULL, regs + GRGPIO_DIR, NULL, BGPIOF_BIG_ENDIAN_BYTE_ORDER); if (err) { - dev_err(&ofdev->dev, "bgpio_init() failed\n"); + dev_err(dev, "bgpio_init() failed\n"); return err; }
priv->regs = regs; priv->imask = gc->read_reg(regs + GRGPIO_IMASK); - priv->dev = &ofdev->dev; + priv->dev = dev;
gc->of_node = np; gc->owner = THIS_MODULE; gc->to_irq = grgpio_to_irq; - gc->label = devm_kasprintf(&ofdev->dev, GFP_KERNEL, "%pOF", np); + gc->label = devm_kasprintf(dev, GFP_KERNEL, "%pOF", np); gc->base = -1;
err = of_property_read_u32(np, "nbits", &prop); if (err || prop <= 0 || prop > GRGPIO_MAX_NGPIO) { gc->ngpio = GRGPIO_MAX_NGPIO; - dev_dbg(&ofdev->dev, - "No or invalid nbits property: assume %d\n", gc->ngpio); + dev_dbg(dev, "No or invalid nbits property: assume %d\n", + gc->ngpio); } else { gc->ngpio = prop; } @@ -380,7 +381,7 @@ static int grgpio_probe(struct platform_device *ofdev) irqmap = (s32 *)of_get_property(np, "irqmap", &size); if (irqmap) { if (size < gc->ngpio) { - dev_err(&ofdev->dev, + dev_err(dev, "irqmap shorter than ngpio (%d < %d)\n", size, gc->ngpio); return -EINVAL; @@ -390,7 +391,7 @@ static int grgpio_probe(struct platform_device *ofdev) &grgpio_irq_domain_ops, priv); if (!priv->domain) { - dev_err(&ofdev->dev, "Could not add irq domain\n"); + dev_err(dev, "Could not add irq domain\n"); return -EINVAL; }
@@ -420,13 +421,13 @@ static int grgpio_probe(struct platform_device *ofdev)
err = gpiochip_add_data(gc, priv); if (err) { - dev_err(&ofdev->dev, "Could not add gpiochip\n"); + dev_err(dev, "Could not add gpiochip\n"); if (priv->domain) irq_domain_remove(priv->domain); return err; }
- dev_info(&ofdev->dev, "regs=0x%p, base=%d, ngpio=%d, irqs=%s\n", + dev_info(dev, "regs=0x%p, base=%d, ngpio=%d, irqs=%s\n", priv->regs, gc->base, gc->ngpio, priv->domain ? "on" : "off");
return 0;