staging: nvec: Use x instead of x != NULL to improve readability.

Use x instead of x != NULL to improve readability.
Issue identified by checkpatch.

Signed-off-by: Tom Mounet <[email protected]>
Reviewed-by: Philipp Hortmann <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Greg Kroah-Hartman <[email protected]>

Author: Tom Mounet

drivers/staging/nvec/nvec.c

@@ -300,7 +300,7 @@ int nvec_write_sync(struct nvec_chip *nvec,
 {
 	mutex_lock(&nvec->sync_write_mutex);
 
-	if (msg != NULL)
+	if (msg)
 		*msg = NULL;
 
 	nvec->sync_write_pending = (data[1] << 8) + data[0];
@@ -322,7 +322,7 @@ int nvec_write_sync(struct nvec_chip *nvec,
 
 	dev_dbg(nvec->dev, "nvec_sync_write: pong!\n");
 
-	if (msg != NULL)
+	if (msg)
 		*msg = nvec->last_sync_msg;
 	else
 		nvec_msg_free(nvec, nvec->last_sync_msg);