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| author | Vaibhav Nagarnaik <vnagarnaik@google.com> | 2012-06-22 18:50:05 (GMT) |
|---|---|---|
| committer | Steven Rostedt <rostedt@goodmis.org> | 2012-06-29 20:16:35 (GMT) |
| commit | 44b99462d9d776522e174d6c531ce5ccef309e26 (patch) | |
| tree | 084dba8a82b1d0e6da17063e200d62a07c6a6e76 /kernel/smpboot.h | |
| parent | 662f5cedb38c4b88e1cebfd54a88159f2f7ab7b9 (diff) | |
| download | linux-fsl-qoriq-44b99462d9d776522e174d6c531ce5ccef309e26.tar.xz | |
ring-buffer: Fix crash due to uninitialized new_pages list head
The new_pages list head in the cpu_buffer is not initialized. When
adding pages to the ring buffer, if the memory allocation fails in
ring_buffer_resize, the clean up handler tries to free up the allocated
pages from all the cpu buffers. The panic is caused by referencing the
uninitialized new_pages list head.
Initializing the new_pages list head in rb_allocate_cpu_buffer fixes
this.
Link: http://lkml.kernel.org/r/1340391005-10880-1-git-send-email-vnagarnaik@google.com
Cc: Justin Teravest <teravest@google.com>
Cc: David Sharp <dhsharp@google.com>
Signed-off-by: Vaibhav Nagarnaik <vnagarnaik@google.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Diffstat (limited to 'kernel/smpboot.h')
0 files changed, 0 insertions, 0 deletions