From 01812ba34a9a7756a46a54f25ba0f02e727ff35c Mon Sep 17 00:00:00 2001 From: Himanshu Jha Date: Thu, 8 Mar 2018 00:08:24 +0530 Subject: [PATCH] usb: isp1760: Use kasprintf Use kasprintf instead of combination of kmalloc and sprintf and therefore avoid unnecessary computation of string length. Also, remove the useless local variable. Signed-off-by: Himanshu Jha Reviewed-by: Kees Cook Signed-off-by: Greg Kroah-Hartman --- drivers/usb/isp1760/isp1760-udc.c | 6 +----- 1 file changed, 1 insertion(+), 5 deletions(-) diff --git a/drivers/usb/isp1760/isp1760-udc.c b/drivers/usb/isp1760/isp1760-udc.c index bac4ef5d9512..1714b2258b54 100644 --- a/drivers/usb/isp1760/isp1760-udc.c +++ b/drivers/usb/isp1760/isp1760-udc.c @@ -1441,7 +1441,6 @@ int isp1760_udc_register(struct isp1760_device *isp, int irq, unsigned long irqflags) { struct isp1760_udc *udc = &isp->udc; - const char *devname; int ret; udc->irq = -1; @@ -1455,13 +1454,10 @@ int isp1760_udc_register(struct isp1760_device *isp, int irq, if (ret < 0) return ret; - devname = dev_name(isp->dev); - udc->irqname = kmalloc(strlen(devname) + 7, GFP_KERNEL); + udc->irqname = kasprintf(GFP_KERNEL, "%s (udc)", dev_name(isp->dev)); if (!udc->irqname) return -ENOMEM; - sprintf(udc->irqname, "%s (udc)", devname); - ret = request_irq(irq, isp1760_udc_irq, IRQF_SHARED | irqflags, udc->irqname, udc); if (ret < 0)