diff options
| author | Jiri Kosina <[email protected]> | 2011-10-06 14:29:48 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <[email protected]> | 2011-10-18 14:17:40 -0700 |
| commit | 9fdbdd062bfc187e2aa32f7880fa7e8ae717efdf (patch) | |
| tree | 473ad879cfb805c26f6f09a7ea5d02c49e15d411 | |
| parent | 8193c4290620d9b2a6ac116719f11aa99053a90d (diff) | |
parport_pc: release IO region properly if unsupported ITE887x card is found
sio_ite_8872_probe() bails out if it detects no-parallel (1S, 2S) or
unknown card.
It doesn't call release_region() on the previously allocated resource
though. This causes
(a) leak of the resource
(b) kernel oops when parport module is removed and /proc/ioports is read. This
is because the string that has been associated to the IO port region
is a static char array inside the already removed module.
Let's call release_region() properly before baling out.
Signed-off-by: Jiri Kosina <[email protected]>
Acked-by: Niels de Vos <[email protected]>
Cc: Bjorn Helgaas <[email protected]>
Cc: Alan Cox <[email protected]>
Cc: Joe Krahn <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
| -rw-r--r-- | drivers/parport/parport_pc.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/parport/parport_pc.c b/drivers/parport/parport_pc.c index d1cdb9449f84..d0b597b50398 100644 --- a/drivers/parport/parport_pc.c +++ b/drivers/parport/parport_pc.c @@ -2595,14 +2595,17 @@ static int __devinit sio_ite_8872_probe(struct pci_dev *pdev, int autoirq, break; case 0x6: printk(KERN_INFO "parport_pc: ITE8873 found (1S)\n"); + release_region(inta_addr[i], 32); return 0; case 0x8: printk(KERN_INFO "parport_pc: ITE8874 found (2S)\n"); + release_region(inta_addr[i], 32); return 0; default: printk(KERN_INFO "parport_pc: unknown ITE887x\n"); printk(KERN_INFO "parport_pc: please mail 'lspci -nvv' " "output to [email protected]\n"); + release_region(inta_addr[i], 32); return 0; } |