devargs: fix parsing truncation when using format

[dpdk.git] / lib / librte_eal / common / eal_common_devargs.c

diff --git a/lib/librte_eal/common/eal_common_devargs.c b/lib/librte_eal/common/eal_common_devargs.c
index 1a7b00ece866568344fcfaf321b20d37165ebd83..dac2402a444ecde4ed80e76f668725dd86fb4fb0 100644 (file)
--- a/lib/librte_eal/common/eal_common_devargs.c
+++ b/lib/librte_eal/common/eal_common_devargs.c
@@ -285,7 +285,7 @@ rte_devargs_parsef(struct rte_devargs *da, const char *format, ...)
        }
 
        va_start(ap, format);
-       vsnprintf(dev, len, format, ap);
+       vsnprintf(dev, len + 1, format, ap);
        va_end(ap);
 
        return rte_devargs_parse(da, dev);