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| author | Russell King <rmk+kernel@arm.linux.org.uk> | 2012-01-24 21:33:26 +0000 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2012-01-24 21:33:26 +0000 |
| commit | 171cf94ccb4b476d1d7d694a31d0820558375132 (patch) | |
| tree | a7874cd87511ee26ea3ee07d15706ac51746777e /drivers/pcmcia | |
| parent | b3945bcbc3f9856f4b5452079bfc2b9738040a37 (diff) | |
| download | lwn-171cf94ccb4b476d1d7d694a31d0820558375132.tar.gz lwn-171cf94ccb4b476d1d7d694a31d0820558375132.zip | |
PCMCIA: fix sa1111 oops on remove
The sa1111 socket driver oopses when removed:
Unable to handle kernel NULL pointer dereference at virtual address 000003b0
pgd = c1b40000
[000003b0] *pgd=00000000
Internal error: Oops: 41b43005 [#1]
Modules linked in:
CPU: 0 Not tainted (3.3.0-rc1+ #744)
PC is at pcmcia_remove+0x3c/0x60
LR is at pcmcia_remove+0x34/0x60
This is because we try to dereference a NULL 's' to obtain the next
pointer. Fix this.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'drivers/pcmcia')
| -rw-r--r-- | drivers/pcmcia/sa1111_generic.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/pcmcia/sa1111_generic.c b/drivers/pcmcia/sa1111_generic.c index 59866905ea37..27f2fe3b7fb4 100644 --- a/drivers/pcmcia/sa1111_generic.c +++ b/drivers/pcmcia/sa1111_generic.c @@ -205,7 +205,8 @@ static int __devexit pcmcia_remove(struct sa1111_dev *dev) dev_set_drvdata(&dev->dev, NULL); - for (; next = s->next, s; s = next) { + for (; s; s = next) { + next = s->next; soc_pcmcia_remove_one(&s->soc); kfree(s); } |