zfs-arc plugin: check return value of malloc

CID #37989

Signed-off-by: Florian Forster <octo@collectd.org>

diff --git a/src/zfs_arc.c b/src/zfs_arc.c
index 540a1db48683232c0cda930665d91cf08cfcd447..86e7d4c5d18427dea8fe8d911993e280283324f6 100644 (file)
--- a/src/zfs_arc.c
+++ b/src/zfs_arc.c
@@ -208,6 +208,11 @@ static int za_read (void)
                {
                        llentry_t *e;
                        llvalues = malloc(sizeof(long long int) * i);
+                       if (llvalues == NULL)
+                       {
+                               ERROR ("zfs_arc plugin: `malloc' failed.");
+                               return (-1);
+                       }
                        int j = 0;
 
                        pnl = file_contents;