contextswitch plugin: Some coding style changes.

diff --git a/src/contextswitch.c b/src/contextswitch.c
index f571d39..c207318 100644 (file)
--- a/src/contextswitch.c
+++ b/src/contextswitch.c
@@ -59,29 +59,31 @@ static void cs_submit (derive_t context_switches)
 
 static int cs_read (void)
 {
-       int status = -2;
 #if HAVE_SYSCTLBYNAME
-       int value;
+       int value = 0;
        size_t value_len = sizeof (value);
+       int status;
 
-       if (sysctlbyname ("vm.stats.sys.v_swtch", (void *) &value, &value_len,
-                       NULL, 0) == 0)
-       {
-               cs_submit(value);
-               status = 0;
-       }
-       else
+       status = sysctlbyname ("vm.stats.sys.v_swtch",
+                       &value, &value_len,
+                       /* new pointer = */ NULL, /* new length = */ 0);
+       if (status != 0)
        {
-               ERROR("contextswitch plugin: sysctlbyname failed");
+               ERROR("contextswitch plugin: sysctlbyname "
+                               "(vm.stats.sys.v_swtch) failed");
+               return (-1);
        }
 
+       cs_submit (value);
 /* #endif HAVE_SYSCTLBYNAME */
+
 #elif KERNEL_LINUX
        FILE *fh;
        char buffer[64];
        int numfields;
        char *fields[3];
        derive_t result = 0;
+       int status = -2;
 
        fh = fopen ("/proc/stat", "r");
        if (fh == NULL) {