- Avoid NULL return from hist_field_name()
The function hist_field_name() is directly passed to a strcat()
which does not handle "NULL" characters. Return a zero length
string when size is greater than the limit.
This is used only to output already created histograms and no
field currently is greater than the limit. But it should still
not return NULL.
- Do not call map->ops->elt_free() on allocation failure
When elt_alloc() fails, it should not call the map->ops->elt_free()
function if it exists, as that function may not be able to handle
the free on allocation failures. The ->elt_free() should only be
called when elt_alloc() succeeds.
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Merge tag 'trace-v7.1-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace
Pull tracing fixes from Steven Rostedt:
- Avoid NULL return from hist_field_name()
The function hist_field_name() is directly passed to a strcat() which
does not handle "NULL" characters. Return a zero length string when
size is greater than the limit.
This is used only to output already created histograms and no field
currently is greater than the limit. But it should still not return
NULL.
- Do not call map->ops->elt_free() on allocation failure
When elt_alloc() fails, it should not call the map->ops->elt_free()
function if it exists, as that function may not be able to handle the
free on allocation failures. The ->elt_free() should only be called
when elt_alloc() succeeds.
* tag 'trace-v7.1-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
tracing: Do not call map->ops->elt_free() if elt_alloc() fails
tracing: Avoid NULL return from hist_field_name() on truncation
23884007af