ide-floppy: add ide_floppy_set_media_lock() helper

Add ide_floppy_set_media_lock() helper and convert idefloppy_open(),
idefloppy_release() and ide_floppy_lockdoor() to use it.

There should be no functional changes caused by this patch.

Acked-by: Borislav Petkov <petkovbb@gmail.com>
Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>

1 files changed, 16 insertions, 23 deletions

diff --git a/drivers/ide/ide-floppy.c b/drivers/ide/ide-floppy.c
index 38dca45ffd11..4bab0932c94a 100644
--- a/drivers/ide/ide-floppy.c
+++ b/drivers/ide/ide-floppy.c
@@ -1038,6 +1038,17 @@ static ide_driver_t idefloppy_driver = {
 #endif
 };
 
+static void ide_floppy_set_media_lock(ide_drive_t *drive, int on)
+{
+        struct ide_atapi_pc pc;
+
+        /* IOMEGA Clik! drives do not support lock/unlock commands */
+        if ((drive->atapi_flags & IDE_AFLAG_CLIK_DRIVE) == 0) {
+                idefloppy_create_prevent_cmd(&pc, on);
+                (void)idefloppy_queue_pc_tail(drive, &pc);
+        }
+}
+
 static int idefloppy_open(struct inode *inode, struct file *filp)
 {
         struct gendisk *disk = inode->i_bdev->bd_disk;
@@ -1084,12 +1095,9 @@ static int idefloppy_open(struct inode *inode, struct file *filp)
                         ret = -EROFS;
                         goto out_put_floppy;
                 }
+
                 drive->atapi_flags |= IDE_AFLAG_MEDIA_CHANGED;
-                /* IOMEGA Clik! drives do not support lock/unlock commands */
-                if (!(drive->atapi_flags & IDE_AFLAG_CLIK_DRIVE)) {
-                        idefloppy_create_prevent_cmd(&pc, 1);
-                        (void) idefloppy_queue_pc_tail(drive, &pc);
-                }
+                ide_floppy_set_media_lock(drive, 1);
                 check_disk_change(inode->i_bdev);
         } else if (drive->atapi_flags & IDE_AFLAG_FORMAT_IN_PROGRESS) {
                 ret = -EBUSY;
@@ -1108,17 +1116,11 @@ static int idefloppy_release(struct inode *inode, struct file *filp)
         struct gendisk *disk = inode->i_bdev->bd_disk;
         struct ide_floppy_obj *floppy = ide_floppy_g(disk);
         ide_drive_t *drive = floppy->drive;
-        struct ide_atapi_pc pc;
 
         debug_log("Reached %s\n", __func__);
 
         if (floppy->openers == 1) {
-                /* IOMEGA Clik! drives do not support lock/unlock commands */
-                if (!(drive->atapi_flags & IDE_AFLAG_CLIK_DRIVE)) {
-                        idefloppy_create_prevent_cmd(&pc, 0);
-                        (void) idefloppy_queue_pc_tail(drive, &pc);
-                }
-
+                ide_floppy_set_media_lock(drive, 0);
                 drive->atapi_flags &= ~IDE_AFLAG_FORMAT_IN_PROGRESS;
         }
 
@@ -1144,21 +1146,12 @@ static int ide_floppy_lockdoor(ide_drive_t *drive, struct ide_atapi_pc *pc,
                                unsigned long arg, unsigned int cmd)
 {
         idefloppy_floppy_t *floppy = drive->driver_data;
+        int prevent = (arg && cmd != CDROMEJECT) ? 1 : 0;
 
         if (floppy->openers > 1)
                 return -EBUSY;
 
-        /* The IOMEGA Clik! Drive doesn't support this command -
-         * no room for an eject mechanism */
-        if (!(drive->atapi_flags & IDE_AFLAG_CLIK_DRIVE)) {
-                int prevent = arg ? 1 : 0;
-
-                if (cmd == CDROMEJECT)
-                        prevent = 0;
-
-                idefloppy_create_prevent_cmd(pc, prevent);
-                (void) idefloppy_queue_pc_tail(floppy->drive, pc);
-        }
+        ide_floppy_set_media_lock(drive, prevent);
 
         if (cmd == CDROMEJECT) {
                 idefloppy_create_start_stop_cmd(pc, 2);