Commits on Jul 1, 2024

1. tree: fix segfault in nvme_free_tree() …

   Commands like nvme list & list-subsys currently segfault for --help or
   any invalid command option as shown below:
   
   nvme list -h
   Usage: nvme list <device> [OPTIONS]
   
   Retrieve basic information for all NVMe namespaces
   
   Options:
     [  --verbose, -v ]                    --- output verbosity
     [  --output-format=<FMT>, -o <FMT> ]  --- format: normal|json|binary
   Segmentation fault (core dumped)
   
   This is due to an invalid dereferencing of the nvme_root_t object in
   nvme_free_tree(). Fix this by checking whether this object is valid
   before dereferencing and freeing it. And while we are it, ensure
   r->options is also valid before freeing it.
   
   Signed-off-by: Martin George <marting@netapp.com>

   

   martin-gpy authored and igaw committed Jul 1, 2024
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