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aeslib: fix register write boundaries

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This commit is contained in:
Daniel Drake 2008-02-15 18:03:03 +00:00
parent d914712437
commit 6f08a3666d
1 changed files with 3 additions and 3 deletions
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6
libfprint/aeslib.c
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@ -78,7 +78,6 @@ static int do_write_regv(struct write_regv_data *wdata, int upper_bound)
.data = data,
.length = alloc_size,
};
fp_dbg("write batch of %d regs", num);
for (i = offset; i < offset + num; i++) {
const struct aes_regwrite *regwrite = &wdata->regs[i];
@ -119,13 +118,14 @@ static void continue_write_regv(struct write_regv_data *wdata)
offset++;
}
wdata->offset = offset;
regs_remaining = wdata->num_regs - offset;
limit = MIN(regs_remaining, MAX_REGWRITES_PER_REQUEST);
upper_bound = offset + limit;
upper_bound = offset + limit - 1;
/* determine if we can write the entire of the regs at once, or if there
* is a zero dividing things up */
for (i = offset; i < offset + limit; i++)
for (i = offset; i <= upper_bound; i++)
if (!wdata->regs[i].reg) {
upper_bound = i - 1;
break;