app/testpmd: fix division by zero on socket memory dump

Variable total, which may be zero and result in segmentation fault.

This patch fixed it.

Fixes: 9b1249d9ff69 ("app/testpmd: support dumping socket memory")
Cc: stable@dpdk.org
Signed-off-by: Min Hu (Connor) <humin29@huawei.com>
Reviewed-by: Ferruh Yigit <ferruh.yigit@intel.com>

diff --git a/app/test-pmd/cmdline.c b/app/test-pmd/cmdline.c
index 5fdcc1c..29ee41d 100644 (file)
--- a/app/test-pmd/cmdline.c
+++ b/app/test-pmd/cmdline.c
@@ -9731,7 +9731,7 @@ dump_socket_mem(FILE *f)
        fprintf(f,
                "Total   : size(M) total: %.6lf alloc: %.6lf(%.3lf%%) free: %.6lf \tcount alloc: %-4u free: %u\n",
                (double)total / (1024 * 1024), (double)alloc / (1024 * 1024),
-               (double)alloc * 100 / (double)total,
+               total ? ((double)alloc * 100 / (double)total) : 0,
                (double)free / (1024 * 1024),
                n_alloc, n_free);
        if (last_allocs)