haraldwolff/qemu-patch-raspberry4
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Fix memory corruption: bdrv_read/write API has been changed to take

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nb_sectors instead of len in bytes but the fdc driver has never been fixed.


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3532 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
j_mayer 2007-11-04 17:17:08 +00:00
parent a06e5a3c64
commit d6c1a327a9
1 changed files with 2 additions and 4 deletions
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6
hw/fdc.c
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@ -1213,8 +1213,7 @@ static uint32_t fdctrl_read_data (fdctrl_t *fdctrl)
len = fdctrl->data_len - fdctrl->data_pos;
if (len > FD_SECTOR_LEN)
len = FD_SECTOR_LEN;
bdrv_read(cur_drv->bs, fd_sector(cur_drv),
fdctrl->fifo, len);
bdrv_read(cur_drv->bs, fd_sector(cur_drv), fdctrl->fifo, 1);
}
}
retval = fdctrl->fifo[pos];
@ -1321,8 +1320,7 @@ static void fdctrl_write_data (fdctrl_t *fdctrl, uint32_t value)
fdctrl->fifo[fdctrl->data_pos++] = value;
if (fdctrl->data_pos % FD_SECTOR_LEN == (FD_SECTOR_LEN - 1) ||
fdctrl->data_pos == fdctrl->data_len) {
bdrv_write(cur_drv->bs, fd_sector(cur_drv),
fdctrl->fifo, FD_SECTOR_LEN);
bdrv_write(cur_drv->bs, fd_sector(cur_drv), fdctrl->fifo, 1);
}
/* Switch from transfer mode to status mode
* then from status mode to command mode