[PATCH] lib-update-single-char-callers-of-strtobool fix

[Kees Cook]

Drop needless buffer usage.

Suggested-by: Andy Shevchenko <andy.shevche...@gmail.com>
Signed-off-by: Kees Cook <keesc...@chromium.org>
---
 fs/cifs/cifs_debug.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/fs/cifs/cifs_debug.c b/fs/cifs/cifs_debug.c
index 6ee59abcb69b..bd61c01e652b 100644
--- a/fs/cifs/cifs_debug.c
+++ b/fs/cifs/cifs_debug.c
@@ -596,7 +596,6 @@ static ssize_t cifs_security_flags_proc_write(struct file 
*file,
        int rc;
        unsigned int flags;
        char flags_string[12];
-       char c[2] = { '\0' };
        bool bv;
 
        if ((count < 1) || (count > 11))
@@ -609,11 +608,10 @@ static ssize_t cifs_security_flags_proc_write(struct file 
*file,
 
        if (count < 3) {
                /* single char or single char followed by null */
-               c[0] = flags_string[0];
-               if (strtobool(c, &bv) == 0) {
+               if (strtobool(flags_string, &bv) == 0) {
                        global_secflags = bv ? CIFSSEC_MAX : CIFSSEC_DEF;
                        return count;
-               } else if (!isdigit(c[0])) {
+               } else if (!isdigit(flags_string[0])) {
                        cifs_dbg(VFS, "Invalid SecurityFlags: %s\n",
                                        flags_string);
                        return -EINVAL;
-- 
2.6.3


-- 
Kees Cook
Chrome OS & Brillo Security