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-rw-r--r--kernel/params.c20
1 files changed, 3 insertions, 17 deletions
diff --git a/kernel/params.c b/kernel/params.c
index 0b30ecd53a52..3c4a9f1b095e 100644
--- a/kernel/params.c
+++ b/kernel/params.c
@@ -58,6 +58,9 @@ static int parse_one(char *param,
/* Find parameter */
for (i = 0; i < num_params; i++) {
if (parameq(param, params[i].name)) {
+ /* Noone handled NULL, so do it here. */
+ if (!val && params[i].set != param_set_bool)
+ return -EINVAL;
DEBUGP("They are equal! Calling %p\n",
params[i].set);
return params[i].set(val, &params[i]);
@@ -181,7 +184,6 @@ int parse_args(const char *name,
tmptype l; \
int ret; \
\
- if (!val) return -EINVAL; \
ret = strtolfn(val, 0, &l); \
if (ret == -EINVAL || ((type)l != l)) \
return -EINVAL; \
@@ -203,12 +205,6 @@ STANDARD_PARAM_DEF(ulong, unsigned long, "%lu", unsigned long, strict_strtoul);
int param_set_charp(const char *val, struct kernel_param *kp)
{
- if (!val) {
- printk(KERN_ERR "%s: string parameter expected\n",
- kp->name);
- return -EINVAL;
- }
-
if (strlen(val) > 1024) {
printk(KERN_ERR "%s: string parameter too long\n",
kp->name);
@@ -309,12 +305,6 @@ static int param_array(const char *name,
kp.arg = elem;
kp.flags = flags;
- /* No equals sign? */
- if (!val) {
- printk(KERN_ERR "%s: expects arguments\n", name);
- return -EINVAL;
- }
-
*num = 0;
/* We expect a comma-separated list of values. */
do {
@@ -381,10 +371,6 @@ int param_set_copystring(const char *val, struct kernel_param *kp)
{
const struct kparam_string *kps = kp->str;
- 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);