Correct pid_t type return from Platform_getMaxPid function

Coverity scanning shows we end up passing an integer into the
Row_setPidColumnWidth routine which requires a pid_t - update
each platform to return the correct type (and never return -1
as a failure code, this was being ignored).

1 files changed, 3 insertions, 3 deletions

diff --git a/linux/Platform.c b/linux/Platform.c
index 33bd8ced..325f92ed 100644
--- a/linux/Platform.c
+++ b/linux/Platform.c
@@ -291,12 +291,12 @@ err:
    *fifteen = NAN;
 }
 
-int Platform_getMaxPid(void) {
+pid_t Platform_getMaxPid(void) {
+   pid_t maxPid = 4194303;
    FILE* file = fopen(PROCDIR "/sys/kernel/pid_max", "r");
    if (!file)
-      return -1;
+      return maxPid;
 
-   int maxPid = 4194303;
    int match = fscanf(file, "%32d", &maxPid);
    (void) match;
    fclose(file);