diff options
| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-01-02 15:13:41 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-01-02 15:13:41 +0100 |
| commit | 01f1918833e4817fdb0810306c021c5cbee775d3 (patch) | |
| tree | 34a649c453d30fee1f1b564badb6e3dc210655c3 /kernel/trace/trace.c | |
| parent | 3df613ec12f71f00dad545a9df75573951e5c59f (diff) | |
| parent | 30a7acd573899fd8b8ac39236eff6468b195ac7d (diff) | |
Merge 4.15.0-rc6 into usb-next
We want the USB fixes in here, and this resolves a merge issue with the
vhci_rx.c file.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'kernel/trace/trace.c')
| -rw-r--r-- | kernel/trace/trace.c | 13 |
1 files changed, 4 insertions, 9 deletions
diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c index 59518b8126d0..2a8d8a294345 100644 --- a/kernel/trace/trace.c +++ b/kernel/trace/trace.c @@ -6769,7 +6769,7 @@ tracing_buffers_splice_read(struct file *file, loff_t *ppos, .spd_release = buffer_spd_release, }; struct buffer_ref *ref; - int entries, size, i; + int entries, i; ssize_t ret = 0; #ifdef CONFIG_TRACER_MAX_TRACE @@ -6823,14 +6823,6 @@ tracing_buffers_splice_read(struct file *file, loff_t *ppos, break; } - /* - * zero out any left over data, this is going to - * user land. - */ - size = ring_buffer_page_len(ref->page); - if (size < PAGE_SIZE) - memset(ref->page + size, 0, PAGE_SIZE - size); - page = virt_to_page(ref->page); spd.pages[i] = page; @@ -7588,6 +7580,7 @@ allocate_trace_buffer(struct trace_array *tr, struct trace_buffer *buf, int size buf->data = alloc_percpu(struct trace_array_cpu); if (!buf->data) { ring_buffer_free(buf->buffer); + buf->buffer = NULL; return -ENOMEM; } @@ -7611,7 +7604,9 @@ static int allocate_trace_buffers(struct trace_array *tr, int size) allocate_snapshot ? size : 1); if (WARN_ON(ret)) { ring_buffer_free(tr->trace_buffer.buffer); + tr->trace_buffer.buffer = NULL; free_percpu(tr->trace_buffer.data); + tr->trace_buffer.data = NULL; return -ENOMEM; } tr->allocated_snapshot = allocate_snapshot; |