On Wednesday 01 August 2012 08:37 PM, Guenter Roeck wrote: > On Wed, Aug 01, 2012 at 03:06:28PM +0530, Shubhrajyoti D wrote: >> The kfree() is taken care of by the spi core (spi_master_release() function) >> that is called once the last reference to the underlying struct device has >> been released. So the driver need not call kfree. >> >> Also the put was missed in some of the error handling fix the same. >> There by fixing the missing device_put in some of the error paths. >> >> Cc: Guenter Roeck <li...@roeck-us.net> > Reported-by: may be better here. My bad. I should have done. > >> Signed-off-by: Shubhrajyoti D <shubhrajy...@ti.com> > Acked-by: Guenter Roeck <li...@roeck-us.net> thanks. > I suspect that "spi_master_put(master);" may also be missing in > omap2_mcspi_remove(), but we'll need someone to confirm that. Looks unlikely.
spi_master_put does a ... if (master) put_device(&master->dev); ... In remove I call spi_unregister_master ... */ void spi_unregister_master(struct spi_master *master) { int dummy; [...] dummy = device_for_each_child(&master->dev, NULL, __unregister); device_unregister(&master->dev); } and void device_unregister(struct device *dev) { [..] device_del(dev); put_device(dev); } Hope my understanding is correct. > Thanks, > Guenter > >> --- >> drivers/spi/spi-omap2-mcspi.c | 6 ++---- >> 1 files changed, 2 insertions(+), 4 deletions(-) >> >> diff --git a/drivers/spi/spi-omap2-mcspi.c b/drivers/spi/spi-omap2-mcspi.c >> index 7d46b15..b5035e2 100644 >> --- a/drivers/spi/spi-omap2-mcspi.c >> +++ b/drivers/spi/spi-omap2-mcspi.c >> @@ -1203,18 +1203,16 @@ static int __devinit omap2_mcspi_probe(struct >> platform_device *pdev) >> >> status = spi_register_master(master); >> if (status < 0) >> - goto err_spi_register; >> + goto disable_pm; >> >> return status; >> >> -err_spi_register: >> - spi_master_put(master); >> disable_pm: >> pm_runtime_disable(&pdev->dev); >> dma_chnl_free: >> kfree(mcspi->dma_channels); >> free_master: >> - kfree(master); >> + spi_master_put(master); >> platform_set_drvdata(pdev, NULL); >> return status; >> } >> -- >> 1.7.5.4 >> >> ------------------------------------------------------------------------------ Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ _______________________________________________ spi-devel-general mailing list spi-devel-general@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/spi-devel-general