From 03a1b56f501ef4f8c54cb89a5f5ed7cc9ccac38f Mon Sep 17 00:00:00 2001 From: Chen Zhou Date: Sat, 9 May 2020 17:18:48 +0800 Subject: [PATCH 1/2] sparc: use scnprintf() in show_pciobppath_attr() in pci.c snprintf() returns the number of bytes that would be written, which may be greater than the the actual length to be written. show_pciobppath_attr() should return the number of bytes printed into the buffer. This is the return value of scnprintf(). Signed-off-by: Chen Zhou Signed-off-by: David S. Miller --- arch/sparc/kernel/pci.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/sparc/kernel/pci.c b/arch/sparc/kernel/pci.c index 5ed43828e0787..a41ad562ed4ea 100644 --- a/arch/sparc/kernel/pci.c +++ b/arch/sparc/kernel/pci.c @@ -593,7 +593,7 @@ show_pciobppath_attr(struct device * dev, struct device_attribute * attr, char * pdev = to_pci_dev(dev); dp = pdev->dev.of_node; - return snprintf (buf, PAGE_SIZE, "%pOF\n", dp); + return scnprintf(buf, PAGE_SIZE, "%pOF\n", dp); } static DEVICE_ATTR(obppath, S_IRUSR | S_IRGRP | S_IROTH, show_pciobppath_attr, NULL); From 117e2cb3eeee2940ba581d104951f6207cb46ce5 Mon Sep 17 00:00:00 2001 From: Chen Zhou Date: Sat, 9 May 2020 17:18:49 +0800 Subject: [PATCH 2/2] sparc: use scnprintf() in show_pciobppath_attr() in vio.c snprintf() returns the number of bytes that would be written, which may be greater than the the actual length to be written. show_pciobppath_attr() should return the number of bytes printed into the buffer. This is the return value of scnprintf(). Signed-off-by: Chen Zhou Signed-off-by: David S. Miller --- arch/sparc/kernel/vio.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/sparc/kernel/vio.c b/arch/sparc/kernel/vio.c index c7cad9b7bba73..4f57056ed463a 100644 --- a/arch/sparc/kernel/vio.c +++ b/arch/sparc/kernel/vio.c @@ -193,7 +193,7 @@ show_pciobppath_attr(struct device *dev, struct device_attribute *attr, vdev = to_vio_dev(dev); dp = vdev->dp; - return snprintf (buf, PAGE_SIZE, "%pOF\n", dp); + return scnprintf(buf, PAGE_SIZE, "%pOF\n", dp); } static DEVICE_ATTR(obppath, S_IRUSR | S_IRGRP | S_IROTH,