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The part_get_info_ubi() function was incorrectly returning 0 (success)
when a UBI volume was not found for a given partition index. This caused
the part_create_block_devices() function in blk-uclass.c to continue
creating devices for non-existent partitions up to MAX_SEARCH_PARTITIONS
Fix the issue by returning -1 when a volume is not found, signaling to
the part_create_block_devices() function that no more valid volumes
exist.
Before patch, 128 blk_partition are created:
Class Index Probed Driver Name
-------------------------------------------------
root 0 [ + ] root_driver root_driver
thermal 0 [ ] imx_thermal |-- imx_thermal
simple_bus 0 [ + ] simple_bus |-- soc
mtd 0 [ + ] mxs-nand-dt | |-- nand-controller@1806000
blk 0 [ ] ubi_blk | | `-- [email protected]
partition 0 [ ] blk_partition | | |-- [email protected]:1
...
partition 127 [ ] blk_partition | | `-- [email protected]:128
After patch, the expected blk_partition are created:
Class Index Probed Driver Name
-------------------------------------------------
root 0 [ + ] root_driver root_driver
thermal 0 [ ] imx_thermal |-- imx_thermal
simple_bus 0 [ + ] simple_bus |-- soc
mtd 0 [ + ] mxs-nand-dt | |-- nand-controller@1806000
blk 0 [ ] ubi_blk | | `-- [email protected]
partition 0 [ ] blk_partition | | |-- [email protected]:1
partition 1 [ ] blk_partition | | |-- [email protected]:2
partition 2 [ ] blk_partition | | |-- [email protected]:3
partition 3 [ ] blk_partition | | `-- [email protected]:4
simple_bus 1 [ + ] simple_bus | |-- bus@2000000
Signed-off-by: Oskar Nilsson <[email protected]>
Cc: Kyungmin Park <[email protected]>
Cc: Heiko Schocher <[email protected]>
Cc: Alexey Romanov <[email protected]>
Changed in v2:
- Change return from -1 to -ENOENT
Reviewed-by: Heiko Schocher <[email protected]>
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