Variable i is used as a denominator which may be zero, and
this may result in segmentation fault.
This patch fixed it.
Fixes:
948bc3d6d095 ("test: add reciprocal based division")
Cc: stable@dpdk.org
Signed-off-by: Min Hu (Connor) <humin29@huawei.com>
Acked-by: Bruce Richardson <bruce.richardson@intel.com>
tot_cyc_n);
printf("Total number of cycles reciprocal division : %"PRIu64"\n",
tot_cyc_r);
tot_cyc_n);
printf("Total number of cycles reciprocal division : %"PRIu64"\n",
tot_cyc_r);
- printf("Cycles per division(normal) : %3.2f\n",
- ((double)tot_cyc_n)/i);
- printf("Cycles per division(reciprocal) : %3.2f\n\n",
- ((double)tot_cyc_r)/i);
+ if (i != 0) {
+ printf("Cycles per division(normal) : %3.2f\n",
+ ((double)tot_cyc_n)/i);
+ printf("Cycles per division(reciprocal) : %3.2f\n\n",
+ ((double)tot_cyc_r)/i);
+ }
tot_cyc_n = 0;
tot_cyc_r = 0;
tot_cyc_n = 0;
tot_cyc_r = 0;
tot_cyc_n);
printf("Total number of cycles reciprocal division : %"PRIu64"\n",
tot_cyc_r);
tot_cyc_n);
printf("Total number of cycles reciprocal division : %"PRIu64"\n",
tot_cyc_r);
- printf("Cycles per division(normal) : %3.2f\n",
- ((double)tot_cyc_n)/i);
- printf("Cycles per division(reciprocal) : %3.2f\n\n",
- ((double)tot_cyc_r)/i);
-
+ if (i != 0) {
+ printf("Cycles per division(normal) : %3.2f\n",
+ ((double)tot_cyc_n)/i);
+ printf("Cycles per division(reciprocal) : %3.2f\n\n",
+ ((double)tot_cyc_r)/i);
+ }
tot_cyc_n = 0;
tot_cyc_r = 0;
tot_cyc_n = 0;
tot_cyc_r = 0;
tot_cyc_n);
printf("Total number of cycles reciprocal division : %"PRIu64"\n",
tot_cyc_r);
tot_cyc_n);
printf("Total number of cycles reciprocal division : %"PRIu64"\n",
tot_cyc_r);
- printf("Cycles per division(normal) : %3.2f\n",
- ((double)tot_cyc_n)/i);
- printf("Cycles per division(reciprocal) : %3.2f\n\n",
- ((double)tot_cyc_r)/i);
+ if (i != 0) {
+ printf("Cycles per division(normal) : %3.2f\n",
+ ((double)tot_cyc_n)/i);
+ printf("Cycles per division(reciprocal) : %3.2f\n\n",
+ ((double)tot_cyc_r)/i);
+ }
tot_cyc_n = 0;
tot_cyc_r = 0;
tot_cyc_n = 0;
tot_cyc_r = 0;
tot_cyc_n);
printf("Total number of cycles reciprocal division : %"PRIu64"\n",
tot_cyc_r);
tot_cyc_n);
printf("Total number of cycles reciprocal division : %"PRIu64"\n",
tot_cyc_r);
- printf("Cycles per division(normal) : %3.2f\n",
- ((double)tot_cyc_n)/i);
- printf("Cycles per division(reciprocal) : %3.2f\n",
- ((double)tot_cyc_r)/i);
+ if (i != 0) {
+ printf("Cycles per division(normal) : %3.2f\n",
+ ((double)tot_cyc_n)/i);
+ printf("Cycles per division(reciprocal) : %3.2f\n",
+ ((double)tot_cyc_r)/i);
+ }