diff options
| author | Hiraku Toyooka <hiraku.toyooka.gu@hitachi.com> | 2012-12-19 07:02:34 (GMT) |
|---|---|---|
| committer | Steven Rostedt <rostedt@goodmis.org> | 2013-01-21 18:22:32 (GMT) |
| commit | a54164114b96b4693b42cdb553260eec41ea4393 (patch) | |
| tree | 0e3f73cb2b3fc36397e5b2f3d3d60643f62eb72e /kernel/trace/trace_functions_graph.c | |
| parent | 6aea49cb5f3001a8275bf9c9f586ec3eb39af194 (diff) | |
| download | linux-fsl-qoriq-a54164114b96b4693b42cdb553260eec41ea4393.tar.xz | |
tracing: Add checks if tr->buffer is NULL in tracing_reset{_online_cpus}
max_tr->buffer could be NULL in the tracing_reset{_online_cpus}. In this
case, a NULL pointer dereference happens, so we should return immediately
from these functions.
Note, the current code does not call tracing_reset*() with max_tr when
its buffer is NULL, but future code will. This patch is needed to prevent
the future code from crashing.
Link: http://lkml.kernel.org/r/20121219070234.31200.93863.stgit@liselsia
Signed-off-by: Hiraku Toyooka <hiraku.toyooka.gu@hitachi.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Diffstat (limited to 'kernel/trace/trace_functions_graph.c')
0 files changed, 0 insertions, 0 deletions