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| author | Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> | 2009-02-25 20:28:24 +0100 |
|---|---|---|
| committer | Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> | 2009-02-25 20:28:24 +0100 |
| commit | 8fed43684174b68f04d01d1210fd00536af790df (patch) | |
| tree | df8d5f87c68526267d0ae320173814ed3f417fd5 /include | |
| parent | d3dd7107f4d843d0f01d0f77d49a7c5449130577 (diff) | |
| download | op-kernel-dev-8fed43684174b68f04d01d1210fd00536af790df.zip op-kernel-dev-8fed43684174b68f04d01d1210fd00536af790df.tar.gz | |
ide: fix refcounting in device drivers
During host driver module removal del_gendisk() results in a final
put on drive->gendev and freeing the drive by drive_release_dev().
Convert device drivers from using struct kref to use struct device
so device driver's object holds reference on ->gendev and prevents
drive from prematurely going away.
Also fix ->remove methods to not erroneously drop reference on a
host driver by using only put_device() instead of ide*_put().
Reported-by: Stanislaw Gruszka <stf_xl@wp.pl>
Tested-by: Stanislaw Gruszka <stf_xl@wp.pl>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/ide.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/include/linux/ide.h b/include/linux/ide.h index 194da5a..fe235b6 100644 --- a/include/linux/ide.h +++ b/include/linux/ide.h @@ -663,7 +663,7 @@ typedef struct ide_drive_s ide_drive_t; #define to_ide_device(dev) container_of(dev, ide_drive_t, gendev) #define to_ide_drv(obj, cont_type) \ - container_of(obj, struct cont_type, kref) + container_of(obj, struct cont_type, dev) #define ide_drv_g(disk, cont_type) \ container_of((disk)->private_data, struct cont_type, driver) |
