[patch 23/26] ide-floppy: software eject not working with LS-120 drive

[Greg KH]

-stable review patch.  If anyone has any objections, please let us know.

------------------
From: Ondrej Zary <linux@xxxxxxxxxxxxxxxxxxxx>

The problem (eject not working on ATAPI LS-120 drive) is caused by
idefloppy_ioctl() function which *first* tries generic_ide_ioctl()
and *only* if it fails with -EINVAL, proceeds with the specific ioctls.
The generic eject command fails with something other than -EINVAL
and the specific one is never executed.

This patch fixes it by first going through the internal ioctls
and only trying generic_ide_ioctl() if none of them matches.

Signed-off-by: Ondrej Zary <linux@xxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@xxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxx>

diff --git a/drivers/ide/ide-floppy.c b/drivers/ide/ide-floppy.c
index e83f54d..f615ab7 100644
---
 drivers/ide/ide-floppy.c |    6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

--- linux-2.6.14.3.orig/drivers/ide/ide-floppy.c
+++ linux-2.6.14.3/drivers/ide/ide-floppy.c
@@ -2038,11 +2038,9 @@ static int idefloppy_ioctl(struct inode 
 	struct ide_floppy_obj *floppy = ide_floppy_g(bdev->bd_disk);
 	ide_drive_t *drive = floppy->drive;
 	void __user *argp = (void __user *)arg;
-	int err = generic_ide_ioctl(drive, file, bdev, cmd, arg);
+	int err;
 	int prevent = (arg) ? 1 : 0;
 	idefloppy_pc_t pc;
-	if (err != -EINVAL)
-		return err;
 
 	switch (cmd) {
 	case CDROMEJECT:
@@ -2094,7 +2092,7 @@ static int idefloppy_ioctl(struct inode 
 	case IDEFLOPPY_IOCTL_FORMAT_GET_PROGRESS:
 		return idefloppy_get_format_progress(drive, argp);
 	}
- 	return -EINVAL;
+	return generic_ide_ioctl(drive, file, bdev, cmd, arg);
 }
 
 static int idefloppy_media_changed(struct gendisk *disk)

--
-
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