Fix OOPS caused by reference of config pointer

[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 8b783052a5f6cbe510e218120f6c16b56ebc96c5..51d8a4d4305bb0dd53d61688d2859a54979e63fb 100644 (file)
--- a/lib/ringbuffer/ring_buffer_vfs.c
+++ b/lib/ringbuffer/ring_buffer_vfs.c
@@ -88,7 +88,7 @@ unsigned int lib_ring_buffer_poll(struct file *filp, poll_table *wait)
        unsigned int mask = 0;
        struct lib_ring_buffer *buf = filp->private_data;
        struct channel *chan = buf->backend.chan;
-       const struct lib_ring_buffer_config *config = chan->backend.config;
+       const struct lib_ring_buffer_config *config = &chan->backend.config;
        int finalized, disabled;
 
        if (filp->f_mode & FMODE_READ) {
@@ -165,7 +165,7 @@ long lib_ring_buffer_ioctl(struct file *filp, unsigned int cmd, unsigned long ar
 {
        struct lib_ring_buffer *buf = filp->private_data;
        struct channel *chan = buf->backend.chan;
-       const struct lib_ring_buffer_config *config = chan->backend.config;
+       const struct lib_ring_buffer_config *config = &chan->backend.config;
 
        if (lib_ring_buffer_channel_is_disabled(chan))
                return -EIO;
@@ -262,7 +262,7 @@ long lib_ring_buffer_compat_ioctl(struct file *filp, unsigned int cmd,
 {
        struct lib_ring_buffer *buf = filp->private_data;
        struct channel *chan = buf->backend.chan;
-       const struct lib_ring_buffer_config *config = chan->backend.config;
+       const struct lib_ring_buffer_config *config = &chan->backend.config;
 
        if (lib_ring_buffer_channel_is_disabled(chan))
                return -EIO;