Block drivers: reply ENOTTY to unknown IOCTLs

Change-Id: Ie2e82d2491d546f4dd73b009100646e249a147b5

drivers/ahci/ahci.c

@@ -2685,7 +2685,7 @@ static int ahci_ioctl(dev_t minor, unsigned int request, endpoint_t endpt,
 			sizeof(val));
 	}
 
-	return EINVAL;
+	return ENOTTY;
 }
 
 /*===========================================================================*

drivers/at_wini/at_wini.c

@@ -2290,7 +2290,7 @@ static int w_ioctl(dev_t minor, unsigned int request, endpoint_t endpt,
 		return (w_wn->w_status & (STATUS_ERR|STATUS_WF)) ? EIO : OK;
 	}
 
-	return EINVAL;
+	return ENOTTY;
 }
 
 /*===========================================================================*

drivers/cat24c256/cat24c256.c

@@ -219,7 +219,7 @@ cat24c256_blk_ioctl(dev_t minor, unsigned int request, endpoint_t endpt,
 {
 	log_trace(&log, "cat24c256_blk_ioctl(%d)\n", minor);
 	/* no supported ioctls for this device */
-	return EINVAL;
+	return ENOTTY;
 }
 
 static struct device *

drivers/filter/main.c

@@ -269,7 +269,7 @@ static int do_ioctl(message *m)
 	default:
 		printf("Filter: unknown ioctl request: %d!\n",
 			m->BDEV_REQUEST);
-		return EINVAL;
+		return ENOTTY;
 	}
 
 	return OK;

drivers/mmc/mmcblk.c

@@ -469,7 +469,7 @@ block_ioctl(dev_t minor,
 		return OK;
 	}
 
-	return EINVAL;
+	return ENOTTY;
 }
 
 /*===========================================================================*

drivers/tda19988/tda19988.c

@@ -178,7 +178,7 @@ struct blockdriver tda19988_tab = {
 	.bdr_open = tda19988_blk_open,
 	.bdr_close = tda19988_blk_close,
 	.bdr_transfer = tda19988_blk_transfer,
-	.bdr_ioctl = tda19988_blk_ioctl,	/* nop -- always returns EINVAL */
+	.bdr_ioctl = tda19988_blk_ioctl,	/* nop -- always returns ENOTTY */
 	.bdr_cleanup = NULL,	/* nothing allocated -- nothing to clean up */
 	.bdr_part = tda19988_blk_part,
 	.bdr_geometry = NULL,	/* no geometry (cylinders, heads, sectors, etc) */
@@ -324,7 +324,7 @@ tda19988_blk_ioctl(dev_t minor, unsigned int request, endpoint_t endpt,
 {
 	log_trace(&log, "tda19988_blk_ioctl(%d)\n", minor);
 	/* no supported ioctls for this device */
-	return EINVAL;
+	return ENOTTY;
 }
 
 static struct device *

drivers/virtio_blk/virtio_blk.c

@@ -390,7 +390,7 @@ virtio_blk_ioctl(dev_t minor, unsigned int req, endpoint_t endpt,
 
 	}
 
-	return EINVAL;
+	return ENOTTY;
 }
 
 static struct device *

lib/libblockdriver/driver.c

@@ -345,7 +345,7 @@ static int do_ioctl(struct blockdriver *bdp, message *mp)
 	if (bdp->bdr_ioctl)
 		r = (*bdp->bdr_ioctl)(minor, request, mp->m_source, grant);
 	else
-		r = EINVAL;
+		r = ENOTTY;
   }
 
   return r;