lttng lib: ring buffer move null pointer check to open

[lttng-modules.git] / lib / ringbuffer / ring_buffer_vfs.c

diff --git a/lib/ringbuffer/ring_buffer_vfs.c b/lib/ringbuffer/ring_buffer_vfs.c
index 1708ffd6bc9b1b80f06da11af5cb7830c2a6923b..8b783052a5f6cbe510e218120f6c16b56ebc96c5 100644 (file)
--- a/lib/ringbuffer/ring_buffer_vfs.c
+++ b/lib/ringbuffer/ring_buffer_vfs.c
@@ -42,6 +42,9 @@ int lib_ring_buffer_open(struct inode *inode, struct file *file)
        struct lib_ring_buffer *buf = inode->i_private;
        int ret;
 
+       if (!buf)
+               return -EINVAL;
+
        ret = lib_ring_buffer_open_read(buf);
        if (ret)
                return ret;