1 files changed, 3 insertions, 2 deletions

diff --git a/lib/dma-debug.c b/lib/dma-debug.c
index 7d2f0b33e5a8..4bfb0471f106 100644
--- a/lib/dma-debug.c
+++ b/lib/dma-debug.c
@@ -570,7 +570,7 @@ static ssize_t filter_write(struct file *file, const char __user *userbuf,
          * Now parse out the first token and use it as the name for the
          * driver to filter for.
          */
-        for (i = 0; i < NAME_MAX_LEN; ++i) {
+        for (i = 0; i < NAME_MAX_LEN - 1; ++i) {
                 current_driver_name[i] = buf[i];
                 if (isspace(buf[i]) || buf[i] == ' ' || buf[i] == 0)
                         break;
@@ -587,9 +587,10 @@ out_unlock:
         return count;
 }
 
-const struct file_operations filter_fops = {
+static const struct file_operations filter_fops = {
         .read  = filter_read,
         .write = filter_write,
+        .llseek = default_llseek,
 };
 
 static int dma_debug_fs_init(void)