[PATCH 1/2] libmtd: add `mtd_dev_present()' library function

Brian Foster brian.foster at maxim-ic.com
Thu Feb 2 08:20:17 EST 2012

On Thursday 02 February 2012 12:33:24 Artem Bityutskiy wrote:
> On Fri, 2012-01-27 at 10:30 -0800, Brian Norris wrote:
> > +int mtd_dev_present(libmtd_t desc, int mtd_num) {  [ ... ]
> This will only work for relatively newer kernels where MTD has sysfs
> support (2.6.30+). Older kernels have no MTD sysfs support and the sysfs
> file you are stat()'ing won't exist, so this function will always return
> an error.

 This is a very plausible concern:  Our older system
 is mostly deployed with 2.6.26(or even older) kernel,
 albeit a 2.6.30 option exists.  It has multiple MTD
 devices, albeit due to the usage/configuration (and
 maybe the use of older mtd-utils?) I suspect the bug
 has never been observed.

 Our latest system uses 2.6.36, and is where the original
 UBI-related bug was observed.


Brian Foster
Principal MTS, Software        |  La Ciotat, France
Maxim Integrated Products      |  Web:  http://www.maxim-ic.com/

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