Andriy Gapon 4dfdaf4d92 mmc_da: make sure that part_index is not used uninitialized in sddastart
This is a fix to r334065.

Without this change I once got stuck I/O with endless partition switching:

(sdda0:aw_mmc_sim2:0:0:0): sddastart
(sdda0:aw_mmc_sim2:0:0:0): Partition  0 -> -525703168
(sdda0:aw_mmc_sim2:0:0:0): xpt_action: func 0x91d XPT_MMC_IO
(sdda0:aw_mmc_sim2:0:0:0): xpt_done: func= 0x91d XPT_MMC_IO status 0x1
(sdda0:aw_mmc_sim2:0:0:0): sddadone
(sdda0:aw_mmc_sim2:0:0:0): Card status: 00000000
(sdda0:aw_mmc_sim2:0:0:0): Current state: 4
(sdda0:aw_mmc_sim2:0:0:0): Compteting partition switch to 0

Note that -525703168 (an int) is 0xe0aa6800 in binary representation.
The partition indexes are actually stored as uint8_t, so that value
was converted / truncated to zero.

MFC after:	1 week
2020-09-08 05:46:10 +00:00
2020-08-26 16:55:28 +00:00
2020-08-15 11:49:31 +00:00
2020-08-25 02:21:27 +00:00
2019-12-11 17:37:53 +00:00
2020-06-24 17:03:42 +00:00
2020-09-05 19:29:42 +00:00
2019-12-31 16:01:36 +00:00
2020-09-05 16:11:04 +00:00
2020-07-14 21:40:53 +00:00

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