Some functions like kmalloc/kzalloc return NULL on failure.
When NULL represents failure, !x is commonly used.
This was done using Coccinelle:
@@
expression *e;
identifier l1;
@@
e = \(kmalloc\|kzalloc\|kcalloc\|devm_kzalloc\)(...);
...
- e == NULL
+ !e
Signed-off-by: Bhaktipriya Shridhar <bhaktipriya96@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
struct usb_device *pusbd;
pdvobjpriv = kzalloc(sizeof(*pdvobjpriv), GFP_KERNEL);
- if (pdvobjpriv == NULL)
+ if (!pdvobjpriv)
return NULL;
pdvobjpriv->pusbintf = usb_intf;