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| author | Aleksandar Radovanovic <biblbroks@sezampro.yu> | 2007-11-27 20:35:53 (GMT) |
|---|---|---|
| committer | Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> | 2007-11-27 20:35:53 (GMT) |
| commit | b48d08177fe635a549aaf63eef508be1de069ebf (patch) | |
| tree | 2d116ba187f198c46b2083b3ef3bca2a3c5ab6d6 /drivers/ide/pci | |
| parent | 8266105b15192177ac732ab8a27b315dc9291100 (diff) | |
| download | linux-fsl-qoriq-b48d08177fe635a549aaf63eef508be1de069ebf.tar.xz | |
aec62xx: Fix kernel oops in driver's probe function
Add pci_enable_device() to aec62xx probe function
before doing any I/O.
Original probe function tries to read from device's
PCI region 4 before calling ide_setup_pci_device().
Since the device is not enabled at this point,
on machines that have no firmware PCI initialization
(e.g. ASUS WL-700gE router), corresponding PCI BAR
is 0 and the following inb() causes a kernel oops.
Signed-off-by: Aleksandar Radovanovic <biblbroks@sezampro.yu>
Cc: Linus Torvalds <torvalds@linux-foundation.org>,
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Diffstat (limited to 'drivers/ide/pci')
| -rw-r--r-- | drivers/ide/pci/aec62xx.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/drivers/ide/pci/aec62xx.c b/drivers/ide/pci/aec62xx.c index 19ec421..4426850 100644 --- a/drivers/ide/pci/aec62xx.c +++ b/drivers/ide/pci/aec62xx.c @@ -260,6 +260,11 @@ static int __devinit aec62xx_init_one(struct pci_dev *dev, const struct pci_devi { struct ide_port_info d; u8 idx = id->driver_data; + int err; + + err = pci_enable_device(dev); + if (err) + return err; d = aec62xx_chipsets[idx]; @@ -272,7 +277,11 @@ static int __devinit aec62xx_init_one(struct pci_dev *dev, const struct pci_devi } } - return ide_setup_pci_device(dev, &d); + err = ide_setup_pci_device(dev, &d); + if (err) + pci_disable_device(dev); + + return err; } static const struct pci_device_id aec62xx_pci_tbl[] = { |