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mmc: emmc and hw partitions partition table id bugfix.

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On bootup the emmc's hw partition is always set to 0 and the partition
table is read from it. When switching to another hw partition the
partition table's id is not updated but instead the old one from
hw partition 0 is used. If there is no partition table on hw partition 0
then the code will terminate and return error even if the desired hw
partition contains a perfectly fine partition table. This fix updates
the partition table struct to correspond to the specified hw partition
before testing if the partition table is valid or not.

Signed-off-by: Erik Tideman <erik.tideman@faltcom.se>
Reviewed-by: Tom Rini <trini@konsulko.com>
[trini: Squash the patch that corrected whitespace in the original into
this one, wrap with HAVE_BLOCK_DEVICE test]
Signed-off-by: Tom Rini <trini@konsulko.com>
This commit is contained in:
Erik Tideman 2016-01-11 13:39:07 +00:00 committed by Tom Rini
parent 1d48ca69e5
commit 99e7fc8a26
1 changed files with 10 additions and 0 deletions
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10
disk/part.c
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@ -493,6 +493,16 @@ int get_device(const char *ifname, const char *dev_hwpart_str,
goto cleanup;
}
#ifdef HAVE_BLOCK_DEVICE
/*
* Updates the partition table for the specified hw partition.
* Does not need to be done for hwpart 0 since it is default and
* already loaded.
*/
if(hwpart != 0)
init_part(*dev_desc);
#endif
cleanup:
free(dup_str);
return dev;