On 2012-07-01 17:20, Devendra Naga wrote:
as comedi_alloc_subdevices may fail, we leak out the memory allocated by alloc_private,
and also the I/O regions we requested.
free out the private data pointer of the driver, and release the I/O regions
Signed-off-by: Devendra Naga <devendra.aaru@xxxxxxxxx>
---
drivers/staging/comedi/drivers/fl512.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/staging/comedi/drivers/fl512.c b/drivers/staging/comedi/drivers/fl512.c
index 52e6d14..1c372d1 100644
--- a/drivers/staging/comedi/drivers/fl512.c
+++ b/drivers/staging/comedi/drivers/fl512.c
@@ -135,8 +135,11 @@ static int fl512_attach(struct comedi_device *dev, struct comedi_devconfig *it)
#endif
ret = comedi_alloc_subdevices(dev, 2);
- if (ret)
+ if (ret) {
+ kfree(dev->private);
+ release_region(iobase, FL512_SIZE);
return ret;
+ }
/*
* this if the definitions of the supdevices, 2 have been defined
As mentioned in my comment for your PATCH 1/2, this is unneccessary. In
fact it will resuly in dev->private being freed twice and the I/O region
being released twice due to clean-up in the comedi core when
fl512_attach() returns an error, which will also call fl512_detach()
during the clean-up.
--
-=( Ian Abbott @ MEV Ltd. E-mail: <abbotti@xxxxxxxxx> )=-
-=( Tel: +44 (0)161 477 1898 FAX: +44 (0)161 718 3587 )=-
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