net: netconsole: Correct mismatched return types

netconsole incorrectly mixes int and ssize_t types by using int for
return variables in functions that should return ssize_t.

This is fixed by updating the return variables to the appropriate
ssize_t type, ensuring consistency across the function definitions.
Signed-off-by: Breno Leitao <leitao@debian.org>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>

drivers/net/netconsole.c

@@ -336,7 +336,7 @@ static ssize_t enabled_store(struct config_item *item,
 	struct netconsole_target *nt = to_target(item);
 	unsigned long flags;
 	bool enabled;
-	int err;
+	ssize_t err;
 
 	mutex_lock(&dynamic_netconsole_mutex);
 	err = kstrtobool(buf, &enabled);
@@ -394,7 +394,7 @@ static ssize_t release_store(struct config_item *item, const char *buf,
 {
 	struct netconsole_target *nt = to_target(item);
 	bool release;
-	int err;
+	ssize_t err;
 
 	mutex_lock(&dynamic_netconsole_mutex);
 	if (nt->enabled) {
@@ -422,7 +422,7 @@ static ssize_t extended_store(struct config_item *item, const char *buf,
 {
 	struct netconsole_target *nt = to_target(item);
 	bool extended;
-	int err;
+	ssize_t err;
 
 	mutex_lock(&dynamic_netconsole_mutex);
 	if (nt->enabled) {
@@ -469,7 +469,7 @@ static ssize_t local_port_store(struct config_item *item, const char *buf,
 		size_t count)
 {
 	struct netconsole_target *nt = to_target(item);
-	int rv = -EINVAL;
+	ssize_t rv = -EINVAL;
 
 	mutex_lock(&dynamic_netconsole_mutex);
 	if (nt->enabled) {
@@ -492,7 +492,7 @@ static ssize_t remote_port_store(struct config_item *item,
 		const char *buf, size_t count)
 {
 	struct netconsole_target *nt = to_target(item);
-	int rv = -EINVAL;
+	ssize_t rv = -EINVAL;
 
 	mutex_lock(&dynamic_netconsole_mutex);
 	if (nt->enabled) {
@@ -685,7 +685,7 @@ static ssize_t userdatum_value_store(struct config_item *item, const char *buf,
 	struct userdatum *udm = to_userdatum(item);
 	struct netconsole_target *nt;
 	struct userdata *ud;
-	int ret;
+	ssize_t ret;
 
 	if (count > MAX_USERDATA_VALUE_LENGTH)
 		return -EMSGSIZE;