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| author | Wolfram Sang <w.sang@pengutronix.de> | 2010-01-15 01:33:08 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2010-01-15 01:33:08 -0800 |
| commit | d4ae5415c6f2dd8f14e027c24f09d708f11a8d60 (patch) | |
| tree | a98f778fe54edfa81a3dbff6736e212e8a2b7005 /drivers/ide | |
| parent | c3be57b6f35ef96a980ce84e59d6a5a8ca6184ad (diff) | |
| download | linux-d4ae5415c6f2dd8f14e027c24f09d708f11a8d60.tar.gz linux-d4ae5415c6f2dd8f14e027c24f09d708f11a8d60.tar.bz2 linux-d4ae5415c6f2dd8f14e027c24f09d708f11a8d60.zip | |
ide/ide-cs: fix order of releasing resources
ide_detach() called first ide_release() and then release_region(). This
produced the following warnings:
Trying to free nonexistent resource <000000000000c10e-000000000000c10e>
Trying to free nonexistent resource <000000000000c100-000000000000c107>
This is true, because the callchain inside ide_release() is:
ide_release -> pcmcia_disable_device -> pcmcia_release_io
So, the whole io-block is already gone for release_region(). To fix
this, just swap the order of releasing (and remove the now obsolete
shadowing).
bzolnier:
- release resources in ide_release() to fix ordering of events
- remove stale FIXME note while at it
Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/ide')
| -rw-r--r-- | drivers/ide/ide-cs.c | 23 |
1 files changed, 11 insertions, 12 deletions
diff --git a/drivers/ide/ide-cs.c b/drivers/ide/ide-cs.c index dd6396384c25..ab87e4f7cec9 100644 --- a/drivers/ide/ide-cs.c +++ b/drivers/ide/ide-cs.c @@ -121,19 +121,11 @@ static int ide_probe(struct pcmcia_device *link) static void ide_detach(struct pcmcia_device *link) { ide_info_t *info = link->priv; - ide_hwif_t *hwif = info->host->ports[0]; - unsigned long data_addr, ctl_addr; dev_dbg(&link->dev, "ide_detach(0x%p)\n", link); - data_addr = hwif->io_ports.data_addr; - ctl_addr = hwif->io_ports.ctl_addr; - ide_release(link); - release_region(ctl_addr, 1); - release_region(data_addr, 8); - kfree(info); } /* ide_detach */ @@ -354,12 +346,19 @@ static void ide_release(struct pcmcia_device *link) dev_dbg(&link->dev, "ide_release(0x%p)\n", link); - if (info->ndev) - /* FIXME: if this fails we need to queue the cleanup somehow - -- need to investigate the required PCMCIA magic */ + if (info->ndev) { + ide_hwif_t *hwif = host->ports[0]; + unsigned long data_addr, ctl_addr; + + data_addr = hwif->io_ports.data_addr; + ctl_addr = hwif->io_ports.ctl_addr; + ide_host_remove(host); + info->ndev = 0; - info->ndev = 0; + release_region(ctl_addr, 1); + release_region(data_addr, 8); + } pcmcia_disable_device(link); } /* ide_release */ |