From: Markus Elfring <[email protected]> Date: Mon, 15 Jan 2018 16:00:22 +0100 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit
The script “checkpatch.pl” pointed information out like the following. Comparison to NULL could be written … Thus fix the affected source code places. Signed-off-by: Markus Elfring <[email protected]> --- drivers/mfd/sm501.c | 26 +++++++++++--------------- 1 file changed, 11 insertions(+), 15 deletions(-) diff --git a/drivers/mfd/sm501.c b/drivers/mfd/sm501.c index d5ab3481794a..726242f51003 100644 --- a/drivers/mfd/sm501.c +++ b/drivers/mfd/sm501.c @@ -1050,13 +1050,13 @@ static int sm501_register_gpio(struct sm501_devdata *sm) spin_lock_init(&gpio->lock); gpio->regs_res = request_mem_region(iobase, 0x20, "sm501-gpio"); - if (gpio->regs_res == NULL) { + if (!gpio->regs_res) { dev_err(sm->dev, "gpio: failed to request region\n"); return -ENXIO; } gpio->regs = ioremap(iobase, 0x20); - if (gpio->regs == NULL) { + if (!gpio->regs) { dev_err(sm->dev, "gpio: failed to remap registers\n"); ret = -ENXIO; goto err_claimed; @@ -1358,7 +1358,7 @@ static int sm501_init_dev(struct sm501_devdata *sm) sm501_register_gpio(sm); } - if (pdata && pdata->gpio_i2c != NULL && pdata->gpio_i2c_nr > 0) { + if (pdata && pdata->gpio_i2c && pdata->gpio_i2c_nr > 0) { if (!sm501_gpio_isregistered(sm)) dev_err(sm->dev, "no gpio available for i2c gpio.\n"); else @@ -1383,7 +1383,7 @@ static int sm501_plat_probe(struct platform_device *dev) int ret; struct sm501_devdata *sm = kzalloc(sizeof(*sm), GFP_KERNEL); - if (sm == NULL) { + if (!sm) { ret = -ENOMEM; goto err1; } @@ -1401,8 +1401,7 @@ static int sm501_plat_probe(struct platform_device *dev) sm->io_res = platform_get_resource(dev, IORESOURCE_MEM, 1); sm->mem_res = platform_get_resource(dev, IORESOURCE_MEM, 0); - - if (sm->io_res == NULL || sm->mem_res == NULL) { + if (!sm->io_res || !sm->mem_res) { dev_err(&dev->dev, "failed to get IO resource\n"); ret = -ENOENT; goto err_res; @@ -1410,8 +1409,7 @@ static int sm501_plat_probe(struct platform_device *dev) sm->regs_claim = request_mem_region(sm->io_res->start, 0x100, "sm501"); - - if (sm->regs_claim == NULL) { + if (!sm->regs_claim) { dev_err(&dev->dev, "cannot claim registers\n"); ret = -EBUSY; goto err_res; @@ -1420,8 +1418,7 @@ static int sm501_plat_probe(struct platform_device *dev) platform_set_drvdata(dev, sm); sm->regs = ioremap(sm->io_res->start, resource_size(sm->io_res)); - - if (sm->regs == NULL) { + if (!sm->regs) { dev_err(&dev->dev, "cannot remap registers\n"); ret = -EIO; goto err_claim; @@ -1447,7 +1444,7 @@ static void sm501_set_power(struct sm501_devdata *sm, int on) { struct sm501_platdata *pd = sm->platdata; - if (pd == NULL) + if (!pd) return; if (pd->get_power) { @@ -1571,7 +1568,7 @@ static int sm501_pci_probe(struct pci_dev *dev, int err; struct sm501_devdata *sm = kzalloc(sizeof(*sm), GFP_KERNEL); - if (sm == NULL) { + if (!sm) { err = -ENOMEM; goto err1; } @@ -1622,15 +1619,14 @@ static int sm501_pci_probe(struct pci_dev *dev, sm->regs_claim = request_mem_region(sm->io_res->start, 0x100, "sm501"); - if (sm->regs_claim == NULL) { + if (!sm->regs_claim) { dev_err(&dev->dev, "cannot claim registers\n"); err= -EBUSY; goto err3; } sm->regs = pci_ioremap_bar(dev, 1); - - if (sm->regs == NULL) { + if (!sm->regs) { dev_err(&dev->dev, "cannot remap registers\n"); err = -EIO; goto err4; -- 2.15.1
