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Message-ID: <52551BC6.5040906@asianux.com> Date: Wed, 09 Oct 2013 17:03:02 +0800 From: Chen Gang <gang.chen@...anux.com> To: "Eric W. Biederman" <ebiederm@...ssion.com>, Al Viro <viro@...iv.linux.org.uk>, xi.wang@...il.com CC: nicolas.dichtel@...nd.com, "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>, Andrew Morton <akpm@...ux-foundation.org>, Joe Perches <joe@...ches.com>, Richard Weinberger <richard@....at> Subject: [PATCH] kernel/sysctl_binary.c: use scnprintf() instead of snprintf() snprintf() will return the 'ideal' length which may be larger than real buffer length, if we only want to use real length, need use scnprintf() instead of. Signed-off-by: Chen Gang <gang.chen@...anux.com> --- kernel/sysctl_binary.c | 6 +++--- 1 files changed, 3 insertions(+), 3 deletions(-) diff --git a/kernel/sysctl_binary.c b/kernel/sysctl_binary.c index b609213..653cbbd 100644 --- a/kernel/sysctl_binary.c +++ b/kernel/sysctl_binary.c @@ -1024,7 +1024,7 @@ static ssize_t bin_intvec(struct file *file, if (get_user(value, vec + i)) goto out_kfree; - str += snprintf(str, end - str, "%lu\t", value); + str += scnprintf(str, end - str, "%lu\t", value); } result = kernel_write(file, buffer, str - buffer, 0); @@ -1095,7 +1095,7 @@ static ssize_t bin_ulongvec(struct file *file, if (get_user(value, vec + i)) goto out_kfree; - str += snprintf(str, end - str, "%lu\t", value); + str += scnprintf(str, end - str, "%lu\t", value); } result = kernel_write(file, buffer, str - buffer, 0); @@ -1205,7 +1205,7 @@ static ssize_t bin_dn_node_address(struct file *file, if (get_user(dnaddr, (__le16 __user *)newval)) goto out; - len = snprintf(buf, sizeof(buf), "%hu.%hu", + len = scnprintf(buf, sizeof(buf), "%hu.%hu", le16_to_cpu(dnaddr) >> 10, le16_to_cpu(dnaddr) & 0x3ff); -- 1.7.7.6 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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