freebsd-nq/sys/cam/mmc
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
..
mmc_all.h mmcam: Use a static length sbuf buffer 2020-08-04 20:02:23 +00:00
mmc_bus.h
mmc_da.c mmc_da: make sure that part_index is not used uninitialized in sddastart 2020-09-08 05:46:10 +00:00
mmc_xpt.c cam: clean up empty lines in .c and .h files 2020-09-01 22:13:48 +00:00
mmc.h Fix setting RCA for MMC cards 2018-06-19 20:02:03 +00:00