parport: change style of NULL comparison

checkpatch was complaining about NULL comparisons.

Signed-off-by: Sudip Mukherjee <sudip@vectorindia.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

1 files changed, 4 insertions, 4 deletions

diff --git a/drivers/parport/share.c b/drivers/parport/share.c
index 441333bd4839..ccd7df458ebc 100644
--- a/drivers/parport/share.c
+++ b/drivers/parport/share.c
@@ -738,11 +738,11 @@ parport_register_device(struct parport *port, const char *name,
         parport_get_port (port);
 
         tmp = kmalloc(sizeof(struct pardevice), GFP_KERNEL);
-        if (tmp == NULL)
+        if (!tmp)
                 goto out;
 
         tmp->state = kmalloc(sizeof(struct parport_state), GFP_KERNEL);
-        if (tmp->state == NULL)
+        if (!tmp->state)
                 goto out_free_pardevice;
 
         tmp->name = name;
@@ -971,7 +971,7 @@ void parport_unregister_device(struct pardevice *dev)
         struct parport *port;
 
 #ifdef PARPORT_PARANOID
-        if (dev == NULL) {
+        if (!dev) {
                 printk(KERN_ERR "parport_unregister_device: passed NULL\n");
                 return;
         }
@@ -1345,7 +1345,7 @@ void parport_release(struct pardevice *dev)
          * interested in being woken up. (Note: no locking required)
          */
         /* !!! LOCKING IS NEEDED HERE */
-        for (pd = port->devices; (port->cad == NULL) && pd; pd = pd->next) {
+        for (pd = port->devices; !port->cad && pd; pd = pd->next) {
                 if (pd->wakeup && pd != dev)
                         pd->wakeup(pd->private);
         }