[PATCH V3] lockdown: Initialize array before use

[Tanya Agarwal]

From: Tanya Agarwal <tanyaagarwal25699 at gmail.com>

The static code analysis tool "Coverity Scan" pointed the following
details out for further development considerations:
CID 1486102: Uninitialized scalar variable (UNINIT)
uninit_use_in_call: Using uninitialized value *temp when calling
strlen.

Conclusion:
Initialize array before use in lockdown_read() to satisfy the static
analyzer.

Fixes: 000d388ed3bb ("security: Add a static lockdown policy LSM")
Signed-off-by: Tanya Agarwal <tanyaagarwal25699 at gmail.com>
---
V2: add Fixes tag and reword commit description
V3: use "" initialization instead of {}

Coverity Link:
https://scan7.scan.coverity.com/#/project-view/52849/11354?selectedIssue=1486102


 security/lockdown/lockdown.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/security/lockdown/lockdown.c b/security/lockdown/lockdown.c
index f2bdbd55aa2b..cf83afa1d879 100644
--- a/security/lockdown/lockdown.c
+++ b/security/lockdown/lockdown.c
@@ -96,7 +96,7 @@ static int __init lockdown_lsm_init(void)
 static ssize_t lockdown_read(struct file *filp, char __user *buf, size_t count,
 			     loff_t *ppos)
 {
-	char temp[80];
+	char temp[80] = "";
 	int i, offset = 0;
 
 	for (i = 0; i < ARRAY_SIZE(lockdown_levels); i++) {
-- 
2.39.5