From: Ben Collins <bcollins@ubuntu.com>
Date: Mon, 19 Dec 2005 19:49:24 +0000 (-0800)
Subject: [PATCH] block: Cleanup CDROMEJECT ioctl
X-Git-Tag: v2.6.15-rc7~16^2~15
X-Git-Url: http://pilppa.com/gitweb/?a=commitdiff_plain;h=f98d2dfd02183e016a6295f72140c60d691c9188;p=linux-2.6-omap-h63xx.git

[PATCH] block: Cleanup CDROMEJECT ioctl

This is just a basic cleanup. No change in functionality.

Signed-off-by: Ben Collins <bcollins@ubuntu.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---

diff --git a/block/scsi_ioctl.c b/block/scsi_ioctl.c
index 382dea7b224..6e7db2e79f4 100644
--- a/block/scsi_ioctl.c
+++ b/block/scsi_ioctl.c
@@ -442,11 +442,37 @@ error:
 	return err;
 }
 
+
+/* Send basic block requests */
+static int __blk_send_generic(request_queue_t *q, struct gendisk *bd_disk, int cmd, int data)
+{
+	struct request *rq;
+	int err;
+
+	rq = blk_get_request(q, WRITE, __GFP_WAIT);
+	rq->flags |= REQ_BLOCK_PC;
+	rq->data = NULL;
+	rq->data_len = 0;
+	rq->timeout = BLK_DEFAULT_TIMEOUT;
+	memset(rq->cmd, 0, sizeof(rq->cmd));
+	rq->cmd[0] = cmd;
+	rq->cmd[4] = data;
+	rq->cmd_len = 6;
+	err = blk_execute_rq(q, bd_disk, rq, 0);
+	blk_put_request(rq);
+
+	return err;
+}
+
+static inline int blk_send_start_stop(request_queue_t *q, struct gendisk *bd_disk, int data)
+{
+	return __blk_send_generic(q, bd_disk, GPCMD_START_STOP_UNIT, data);
+}
+
 int scsi_cmd_ioctl(struct file *file, struct gendisk *bd_disk, unsigned int cmd, void __user *arg)
 {
 	request_queue_t *q;
-	struct request *rq;
-	int close = 0, err;
+	int err;
 
 	q = bd_disk->queue;
 	if (!q)
@@ -564,19 +590,10 @@ int scsi_cmd_ioctl(struct file *file, struct gendisk *bd_disk, unsigned int cmd,
 			err = sg_scsi_ioctl(file, q, bd_disk, arg);
 			break;
 		case CDROMCLOSETRAY:
-			close = 1;
+			err = blk_send_start_stop(q, bd_disk, 0x03);
+			break;
 		case CDROMEJECT:
-			rq = blk_get_request(q, WRITE, __GFP_WAIT);
-			rq->flags |= REQ_BLOCK_PC;
-			rq->data = NULL;
-			rq->data_len = 0;
-			rq->timeout = BLK_DEFAULT_TIMEOUT;
-			memset(rq->cmd, 0, sizeof(rq->cmd));
-			rq->cmd[0] = GPCMD_START_STOP_UNIT;
-			rq->cmd[4] = 0x02 + (close != 0);
-			rq->cmd_len = 6;
-			err = blk_execute_rq(q, bd_disk, rq, 0);
-			blk_put_request(rq);
+			err = blk_send_start_stop(q, bd_disk, 0x02);
 			break;
 		default:
 			err = -ENOTTY;