Found by clang static checker.
On the very first call of jim_newtap_expected_id() pTap->expected_ids
and expected_len are null, and there's nothing to copy. This patch
changes this cryptic code to use realloc() instead.
Change-Id: Ic0b5140d08257a906f15b55a2ae64db7bc06d5f1
Signed-off-by: Paul Fertser <fercerpav@gmail.com>
Reviewed-on: http://openocd.zylin.com/2562
Reviewed-by: Stian Skjelstad <stian@nixia.no>
Tested-by: jenkins
- unsigned expected_len = sizeof(uint32_t) * pTap->expected_ids_cnt;
- uint32_t *new_expected_ids = malloc(expected_len + sizeof(uint32_t));
- if (new_expected_ids == NULL) {
+ uint32_t *p = realloc(pTap->expected_ids,
+ (pTap->expected_ids_cnt + 1) * sizeof(uint32_t));
+ if (!p) {
Jim_SetResultFormatted(goi->interp, "no memory");
return JIM_ERR;
}
Jim_SetResultFormatted(goi->interp, "no memory");
return JIM_ERR;
}
- memcpy(new_expected_ids, pTap->expected_ids, expected_len);
-
- new_expected_ids[pTap->expected_ids_cnt] = w;
-
- free(pTap->expected_ids);
- pTap->expected_ids = new_expected_ids;
- pTap->expected_ids_cnt++;
+ pTap->expected_ids = p;
+ pTap->expected_ids[pTap->expected_ids_cnt++] = w;
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