The function parse_port_list() is designed to return
unsigned int value. After sanitizing the inputs,
it is returning -1. Changed it to return 0.

Fixes: 2df00d562d20 ("app/testpmd: add --portlist option")
Cc: hariprasad.govindhara...@intel.com

Signed-off-by: Hariprasad Govindharajan <hariprasad.govindhara...@intel.com>
---
v3:
corrected the documentation comments.
updated the comments on return values.

v2:
modified the head line in the patch
---
 app/test-pmd/config.c | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/app/test-pmd/config.c b/app/test-pmd/config.c
index 9d95202..e9b89c4 100644
--- a/app/test-pmd/config.c
+++ b/app/test-pmd/config.c
@@ -2616,9 +2616,6 @@ set_fwd_ports_list(unsigned int *portlist, unsigned int 
nb_pt)
  *   If the user wants to use only the ports 1,2 then the input
  *   is 1,2.
  *   valid characters are '-' and ','
- *   invalid chars like '.' or '#' will result in
- *   EAL: Error - exiting with code: 1
- *     Cause: Invalid fwd port list
  * @param[out] values
  *   This array will be filled with a list of port IDs
  *   based on the user input
@@ -2630,7 +2627,8 @@ set_fwd_ports_list(unsigned int *portlist, unsigned int 
nb_pt)
  *   1) Number of elements in the values array
  *   2) Maximum value of each element in the values array
  * @return
- *   -returns total count of parsed port IDs
+ *   On success, returns total count of parsed port IDs
+ *   On failure, returns 0
  */
 static unsigned int
 parse_port_list(const char *list, unsigned int *values, unsigned int maxsize)
@@ -2642,7 +2640,7 @@ parse_port_list(const char *list, unsigned int *values, 
unsigned int maxsize)
        unsigned int marked[maxsize];
 
        if (list == NULL || values == NULL)
-               return -1;
+               return 0;
 
        for (i = 0; i < (int)maxsize; i++)
                marked[i] = 0;
-- 
2.7.4

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