X-Git-Url: http://git.rot13.org/?a=blobdiff_plain;f=kernel%2Fparams.c;h=1fc4ac746cd8b7c5f9fd9310741beee1397f8c9b;hb=2fb90b128aaf7758e3de22119515fb11174d4f23;hp=e265b13195b165164f3f9f59d6880b560502c89e;hpb=0ce3c83a9c22f59937b86c80b478dfbffe54dbab;p=powerpc.git

diff --git a/kernel/params.c b/kernel/params.c
index e265b13195..1fc4ac746c 100644
--- a/kernel/params.c
+++ b/kernel/params.c
@@ -356,6 +356,10 @@ int param_set_copystring(const char *val, struct kernel_param *kp)
 {
 	struct kparam_string *kps = kp->arg;
 
+	if (!val) {
+		printk(KERN_ERR "%s: missing param set value\n", kp->name);
+		return -EINVAL;
+	}
 	if (strlen(val)+1 > kps->maxlen) {
 		printk(KERN_ERR "%s: string doesn't fit in %u chars.\n",
 		       kp->name, kps->maxlen-1);