pata_it821x: Delete an error message for a failed memory allocation in it821x_firmware_command()

Omit an extra message for a memory allocation failure in this function.

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <[e-mail]>
Signed-off-by: Tejun Heo <[e-mail]>

drivers/ata/pata_it821x.c

···
 	u8 status;
 	int n = 0;
 	u16 *buf = kmalloc(len, GFP_KERNEL);
-	if (buf == NULL) {
-		printk(KERN_ERR "it821x_firmware_command: Out of memory\n");
+
+	if (!buf)
 		return NULL;
-	}
+
 	/* This isn't quite a normal ATA command as we are talking to the
 	   firmware not the drives */
 	ap->ctl |= ATA_NIEN;