[dpdk-dev] [PATCH] app/compress-perf: fix floating point exception

[Adam Dybkowski]

This patch fixes the floating point exception that happened
when the number of cores to be used during the benchmark
was zero. After the fix such situation is detected, the error
message is printed and the benchmark application exits.

Fixes: 424dd6c8c1a8 ("app/compress-perf: add weak functions for multicore test")

Signed-off-by: Adam Dybkowski <adamx.dybkowski at intel.com>
---
 app/test-compress-perf/main.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/app/test-compress-perf/main.c b/app/test-compress-perf/main.c
index e7ac412e6..6f095b548 100644
--- a/app/test-compress-perf/main.c
+++ b/app/test-compress-perf/main.c
@@ -127,9 +127,13 @@ comp_perf_initialize_compressdev(struct comp_test_data *test_data,
 	 * if there are more available than cores.
 	 */
 	if (enabled_cdev_count > nb_lcores) {
+		if (nb_lcores == 0) {
+			RTE_LOG(ERR, USER1, "Cannot run with 0 cores! Increase the number of cores\n");
+			return -EINVAL;
+		}
 		enabled_cdev_count = nb_lcores;
 		RTE_LOG(INFO, USER1,
-			" There's more available devices than cores!"
+			"There's more available devices than cores!"
 			" The number of devices has been aligned to %d cores\n",
 			nb_lcores);
 	}
-- 
2.17.1