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| author | Steven Rostedt <srostedt@redhat.com> | 2012-11-30 03:27:22 (GMT) |
|---|---|---|
| committer | Steven Rostedt <rostedt@goodmis.org> | 2012-11-30 16:09:28 (GMT) |
| commit | 54f7be5b831254199522523ccab4c3d954bbf576 (patch) | |
| tree | 7a65782f3bb7f67438db53444b59e8206916d478 /arch/avr32/Makefile | |
| parent | 70f77b3f7ec010ff9624c1f2e39a81babc9e2429 (diff) | |
| download | linux-fsl-qoriq-54f7be5b831254199522523ccab4c3d954bbf576.tar.xz | |
ring-buffer: Fix NULL pointer if rb_set_head_page() fails
The function rb_set_head_page() searches the list of ring buffer
pages for a the page that has the HEAD page flag set. If it does
not find it, it will do a WARN_ON(), disable the ring buffer and
return NULL, as this should never happen.
But if this bug happens to happen, not all callers of this function
can handle a NULL pointer being returned from it. That needs to be
fixed.
Cc: stable@vger.kernel.org # 3.0+
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Diffstat (limited to 'arch/avr32/Makefile')
0 files changed, 0 insertions, 0 deletions