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authorDavid Oberhollenzer <david.oberhollenzer@sigma-star.at>2018-06-09 16:45:22 +0200
committerDavid Oberhollenzer <david.oberhollenzer@sigma-star.at>2018-06-09 18:09:39 +0200
commit0f833ac73ad631248826386e2918d8571ecf0347 (patch)
tree7c3a4863624f12816bae2f8ae343f803d08f3601 /COPYING
parent64f61a9dc71b158c7084006cbce4ea23886f0b47 (diff)
Revert "Return correct error number in ubi_get_vol_info1"
This reverts commit dede98ffb706676309488d7cc660f569548d5930. The original commit tried to fix a descrepancy between the implementation and the documentation by making the implementation comply. When making the change, it was overlooked, that ubinfo and ubirename were written against the implementation instead of the behaviour specified by the documentation. So were further internal functions like ubi_get_vol_info1_nm which further breaks ubirmvol. A report with an outline of a resulting problem can be read on the mailing list: http://lists.infradead.org/pipermail/linux-mtd/2018-June/081562.html From the report: steps to reproduce: have mtd-utils 2.0.1 or 2.0.2 0. make a bunch of ubi volumes in sequential order ubimkvol /dev/ubi0 -s 64KiB -N test1 ubimkvol /dev/ubi0 -s 64KiB -N test2 ubimkvol /dev/ubi0 -s 64KiB -N test3 ubimkvol /dev/ubi0 -s 64KiB -N test4 .. 1. delete the test1 volume, making a hole in the volume table ubirmvol /dev/ubi0 -N test1 2. try an affected tool (i.e. "ubirmvol /dev/ubi0 -N test4" ) |root at mr24:/# ubirmvol /dev/ubi0 -N test4 |ubirmvol: error!: cannot find UBI volume "test4" | error 19 (No such device) or "ubinfo -a" | root at mr24:/# ubinfo -a | UBI version: 1 | Count of UBI devices: 1 | UBI control device major/minor: 10:59 | Present UBI devices: ubi0 | | ubi0 | Volumes count: 11 | Logical eraseblock size: 15872 bytes, 15.5 KiB | Total amount of logical eraseblocks: 1952 (30982144 bytes, 29.5 MiB) | Amount of available logical eraseblocks: 75 (1190400 bytes, 1.1 MiB) | Maximum count of volumes 92 | Count of bad physical eraseblocks: 0 | Count of reserved physical eraseblocks: 40 | Current maximum erase counter value: 984 | Minimum input/output unit size: 512 bytes | Character device major/minor: 251:0 | ubinfo: error!: libubi failed to probe volume 5 on ubi0 | error 19 (No such device) | Present volumes: 0, 1, 2, 3, 4root at mr24:/# Reported-by: Christian Lamparter <chunkeey@gmail.com> Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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