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ide-floppy - software eject not working with LS-120 drive

DISCUSSION Ondrej Zary 1 participant 3 messages Sep 2, 2005 – Sep 4, 2005 1 message not in the archive libata

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#0 lore raw

Hello,
I've bought "new" LS-120 drive and found that software eject does not work with 2.6.13 kernel:

root@pentium:~# eject /dev/hdc
eject: unable to eject, last error: Invalid argument

The drive spins up and after a while the command fails. This appears in dmesg after each eject attempt:
hdc: unknown partition table
ide-floppy: hdc: I/O error, pc = 1b, key = 5, asc = 24, ascq = 0

When I boot 2.4.31, eject works fine.

Signature · 1 line
Ondrej Zary
#2 lore raw
In reply to a message not in the archive
Quoted 12 lines · Denis Vlasenko
Quoted 10 lines · Ondrej Zary

Hello,
I've bought "new" LS-120 drive and found that software eject does not work with 2.6.13 kernel:

root@pentium:~# eject /dev/hdc
eject: unable to eject, last error: Invalid argument

The drive spins up and after a while the command fails. This appears in dmesg after each eject attempt:
hdc: unknown partition table
ide-floppy: hdc: I/O error, pc = 1b, key = 5, asc = 24, ascq = 0

Quoted 4 lines
Quoted 1 line

When I boot 2.4.31, eject works fine.

Can you probive something narrower than 2.4.31 -> 2.6.13 jump?

The problem is caused by idefloppy_ioctl() function which *first* tries generic_ide_ioctl() and *only* if it fails with -EINVAL, proceeds with the specific ioctls.
This patch fixes it by first going through the internal ioctls and only trying generic_ide_ioctl() if none of them matches.

Signature · 1 line
Ondrej Zary
drivers/ide/ide-floppy.c +2 -4
@@ -2038,11 +2038,9 @@
 	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 @@
 	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)
#3 lore raw
In reply to a message not in the archive
Quoted 12 lines · Denis Vlasenko
Quoted 10 lines · Ondrej Zary

Hello,
I've bought "new" LS-120 drive and found that software eject does not work with 2.6.13 kernel:

root@pentium:~# eject /dev/hdc
eject: unable to eject, last error: Invalid argument

The drive spins up and after a while the command fails. This appears in dmesg after each eject attempt:
hdc: unknown partition table
ide-floppy: hdc: I/O error, pc = 1b, key = 5, asc = 24, ascq = 0

Quoted 4 lines
Quoted 1 line

When I boot 2.4.31, eject works fine.

Can you probive something narrower than 2.4.31 -> 2.6.13 jump?

The problem is caused by idefloppy_ioctl() function which *first* tries generic_ide_ioctl() and *only* if it fails with -EINVAL, proceeds with the specific ioctls.
This patch fixes it by first going through the internal ioctls and only trying generic_ide_ioctl() if none of them matches.

Signature · 1 line
Ondrej Zary
drivers/ide/ide-floppy.c +2 -4
@@ -2038,11 +2038,9 @@
 	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 @@
 	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)