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Re: [PATCH v2 1/3] nvmem: core: make default user binary file root-access only

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On Wed, Oct 07, 2015 at 12:00:47PM +0100, Srinivas Kandagatla wrote:
> As required by many providers like at24/at25/mxs-ocotp/qfprom and may be
> other providers would want to allow root-only to read the nvmem content.
> So making the defaults to be root-only access would address the request
> and also provide flexibility to providers to specify there own permissions
> on top of the root-only using the perm flag in nvmem_config.
> Making this dynamic did cut down lot of static binary attributes in the
> code.

Check what the lifetime of a struct bin_attribute is before you embed it
into any other structure.  Sorry, but I think you're going to have to
read up on the driver model, sysfs, and kernfs implementations to find
out - I don't know the answer to this without doing the same.

However, this is basic checking that anyone should do when embedding
a structure within another.

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[PATCH v2 0/3] nvmem: make sysfs binary file permissions more flexible. Srinivas Kandagatla <srinivas.kandagatla@linaro.org> - 2015-10-07 13:10 +0200
  [PATCH v2 1/3] nvmem: core: make default user binary file root-access only Srinivas Kandagatla <srinivas.kandagatla@linaro.org> - 2015-10-07 13:10 +0200
    Re: [PATCH v2 1/3] nvmem: core: make default user binary file  root-access only Russell King - ARM Linux <linux@arm.linux.org.uk> - 2015-10-07 13:40 +0200
      Re: [PATCH v2 1/3] nvmem: core: make default user binary file root-access  only Srinivas Kandagatla <srinivas.kandagatla@linaro.org> - 2015-10-07 15:50 +0200
        Re: [PATCH v2 1/3] nvmem: core: make default user binary file  root-access only Russell King - ARM Linux <linux@arm.linux.org.uk> - 2015-10-07 18:30 +0200
    Re: [PATCH v2 1/3] nvmem: core: make default user binary file  root-access only Greg KH <gregkh@linuxfoundation.org> - 2015-10-07 15:00 +0200
      Re: [PATCH v2 1/3] nvmem: core: make default user binary file root-access  only Srinivas Kandagatla <srinivas.kandagatla@linaro.org> - 2015-10-07 15:20 +0200
        Re: [PATCH v2 1/3] nvmem: core: make default user binary file  root-access only Greg KH <gregkh@linuxfoundation.org> - 2015-10-07 18:20 +0200

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