[PATCH v2 0/2] tracing: Do not clean up hiter in mmiotrace read function

[Steven Rostedt]

When the mmiotrace trace was first created, it allocated a descriptor in
its pipe_open() method. Since there was no pipe_close() method when it was
created (in May of 2008, and pipe_close() was added in December of 2009),
it cleaned up the allocated descriptors in the read.

Now that the clean up is in the pipe_close() method that now exists,
remove the clean up from the read as it is no longer needed.

Also simplify the code by inverting the early exit conditional into a
conditional to perform the logic and get rid of the goto.

Link: https://lore.kernel.org/all/20260715143604.14481-1-gaikwad.dcg@xxxxxxxxx/
Link: https://lore.kernel.org/all/20260721211143.36dbd559@xxxxxxxxxxxxxxxxxx/

Changse since v1: https://lore.kernel.org/linux-trace-kernel/20260721212010.76e9ed61@xxxxxxxxxxxxxxxxxx/

- Broke it up into two patches. Nothing else changed.

Steven Rostedt (2):
      tracing: Do not clean up hiter in mmiotrace read function
      tracing: Invert the logic in mmio_read() to get rid of the goto

----
 kernel/trace/trace_mmiotrace.c | 14 +++-----------
 1 file changed, 3 insertions(+), 11 deletions(-)