evm: remove set but not used variable 'xattr'

Fixes gcc '-Wunused-but-set-variable' warning:

security/integrity/evm/evm_main.c: In function 'init_evm':
security/integrity/evm/evm_main.c:566:21: warning:
 variable 'xattr' set but not used [-Wunused-but-set-variable]

Commit 21af76631476 ("EVM: turn evm_config_xattrnames into a list")
defined and set "xattr", but never used it.

[zohar@linux.ibm.com: tweaked the patch description explanation]
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Mimi Zohar <zohar@linux.ibm.com>

diff --git a/security/integrity/evm/evm_main.c b/security/integrity/evm/evm_main.c
index 5ecaa3d..b6d9f14 100644 (file)
--- a/security/integrity/evm/evm_main.c
+++ b/security/integrity/evm/evm_main.c
@@ -563,7 +563,6 @@ static int __init init_evm(void)
 {
        int error;
        struct list_head *pos, *q;
-       struct xattr_list *xattr;
 
        evm_init_config();
 
@@ -580,11 +579,8 @@ static int __init init_evm(void)
 error:
        if (error != 0) {
                if (!list_empty(&evm_config_xattrnames)) {
-                       list_for_each_safe(pos, q, &evm_config_xattrnames) {
-                               xattr = list_entry(pos, struct xattr_list,
-                                                  list);
+                       list_for_each_safe(pos, q, &evm_config_xattrnames)
                                list_del(pos);
-                       }
                }
        }