cris: return of class_create should be considered

Return value of class_create should be considered in module init function.

Signed-off-by: Zhouyi Zhou <zhouzhouyi@gmail.com>
Signed-off-by: Jesper Nilsson <jespern@axis.com>

diff --git a/arch/cris/arch-v32/drivers/sync_serial.c b/arch/cris/arch-v32/drivers/sync_serial.c
index e989cee..ef515af 100644 (file)
--- a/arch/cris/arch-v32/drivers/sync_serial.c
+++ b/arch/cris/arch-v32/drivers/sync_serial.c
@@ -1627,6 +1627,12 @@ static int __init etrax_sync_serial_init(void)
 
        /* Create a sysfs class for syncser */
        syncser_class = class_create(THIS_MODULE, "syncser_class");
+       if (IS_ERR(syncser_class)) {
+               pr_err("Failed to create a sysfs class for syncser\n");
+               unregister_chrdev_region(syncser_first, minor_count);
+               cdev_del(syncser_cdev);
+               return -1;
+       }
 
        /* Initialize Ports */
 #if defined(CONFIG_ETRAX_SYNCHRONOUS_SERIAL_PORT0)