1 files changed, 5 insertions, 1 deletions

diff --git a/kernel/dma/contiguous.c b/kernel/dma/contiguous.c
index 286d82329eb0..b2a87905846d 100644
--- a/kernel/dma/contiguous.c
+++ b/kernel/dma/contiguous.c
@@ -49,7 +49,11 @@ static phys_addr_t limit_cmdline;
 
 static int __init early_cma(char *p)
 {
-        pr_debug("%s(%s)\n", __func__, p);
+        if (!p) {
+                pr_err("Config string not provided\n");
+                return -EINVAL;
+        }
+
         size_cmdline = memparse(p, &p);
         if (*p != '@')
                 return 0;