[PATCH] security/commoncap: Use xattr security prefix len

[Carmeli Tamir]

Using the existing defined XATTR_SECURITY_PREFIX_LEN instead of
sizeof(XATTR_SECURITY_PREFIX) - 1. Pretty simple cleanup.

Signed-off-by: Carmeli Tamir <carmeli.tamir@xxxxxxxxx>
---
 security/commoncap.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/security/commoncap.c b/security/commoncap.c
index c0b9664ee49e..99d1fcae22fd 100644
--- a/security/commoncap.c
+++ b/security/commoncap.c
@@ -915,7 +915,7 @@ int cap_inode_setxattr(struct dentry *dentry, const char *name,
 
 	/* Ignore non-security xattrs */
 	if (strncmp(name, XATTR_SECURITY_PREFIX,
-			sizeof(XATTR_SECURITY_PREFIX) - 1) != 0)
+			XATTR_SECURITY_PREFIX_LEN) != 0)
 		return 0;
 
 	/*
@@ -947,7 +947,7 @@ int cap_inode_removexattr(struct dentry *dentry, const char *name)
 
 	/* Ignore non-security xattrs */
 	if (strncmp(name, XATTR_SECURITY_PREFIX,
-			sizeof(XATTR_SECURITY_PREFIX) - 1) != 0)
+			XATTR_SECURITY_PREFIX_LEN) != 0)
 		return 0;
 
 	if (strcmp(name, XATTR_NAME_CAPS) == 0) {
-- 
2.21.0