staging: greybus: Change NULL comparison to Boolean Negation

Change NULL comparison to boolean negation. Issue found by Checkpatch.

Signed-off-by: Nishka Dasgupta <nishka.dasgupta@yahoo.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/staging/greybus/bundle.c b/drivers/staging/greybus/bundle.c
index e97b2b87ba47565640e243ad3c4196b73ffe475c..376ca53f0d83a963a74b0df1a9c7ffaba7443333 100644 (file)
--- a/drivers/staging/greybus/bundle.c
+++ b/drivers/staging/greybus/bundle.c
@@ -32,7 +32,7 @@ static ssize_t state_show(struct device *dev, struct device_attribute *attr,
 {
        struct gb_bundle *bundle = to_gb_bundle(dev);
 
-       if (bundle->state == NULL)
+       if (!(bundle->state))
                return sprintf(buf, "\n");
 
        return sprintf(buf, "%s\n", bundle->state);