Re: [PATCH] net: check all name nodes in __dev_alloc_name

On Thu, Mar 18, 2021 at 04:42:53AM +0100, Jiri Bohac wrote:

__dev_alloc_name(), when supplied with a name containing '%d',
will search for the first available device number to generate a
unique device name.

Since commit ff92741270bf8b6e78aa885f166b68c7a67ab13a ("net:
introduce name_node struct to be used in hashlist") network
devices may have alternate names.  __dev_alloc_name() does take

Should this be "does not take"

these alternate names into account, possibly generating a name
that is already taken and failing with -ENFILE as a result.

  Andrew