On Thursday, February 05, 2015 08:49:24 AM Nick Krause wrote: > On Thu, Feb 5, 2015 at 8:15 AM, Bartlomiej Zolnierkiewicz > <[email protected]> wrote: > > On Thursday, February 05, 2015 08:00:24 AM Nick Krause wrote: > >> On Thu, Feb 5, 2015 at 6:02 AM, Bartlomiej Zolnierkiewicz > >> <[email protected]> wrote: > >> > > >> > Hi, > >> > > >> > On Wednesday, February 04, 2015 06:47:41 PM Nicholas Krause wrote: > >> >> Removes the no longer valid fix me comment in the function, > >> >> ninja32_init_one for > >> >> questioning if we are required to remove the activated device at the > >> >> end of this > >> >> function by calling the function, ata_host_activate to activate the > >> >> device passed > >> >> by the caller of the function ninja_init_one. This comment is no longer > >> >> needed as > >> >> we need to deallocate the memory used to store this device's > >> >> information when the > >> >> device is no longer in use by the system in order to avoid leaking > >> >> memory. Due to > >> >> this the driver in the file,ninja32_init_one has the > >> >> function,ata_pci_remove_one > >> >> to release the memory allocated in it's init function and therefore > >> >> this comment > >> >> can now be removed due to use correctly freeing the memory allocated > >> >> from the > >> >> driver's init function,ninja32_init_one. > >> >> > >> >> Signed-off-by: Nicholas Krause <[email protected]> > >> >> --- > >> >> drivers/ata/pata_ninja32.c | 1 - > >> >> 1 file changed, 1 deletion(-) > >> >> > >> >> diff --git a/drivers/ata/pata_ninja32.c b/drivers/ata/pata_ninja32.c > >> >> index efb272d..47b30d3 100644 > >> >> --- a/drivers/ata/pata_ninja32.c > >> >> +++ b/drivers/ata/pata_ninja32.c > >> >> @@ -147,7 +147,6 @@ static int ninja32_init_one(struct pci_dev *dev, > >> >> const struct pci_device_id *id) > >> >> ap->pflags = ATA_PFLAG_PIO32 | ATA_PFLAG_PIO32CHANGE; > >> >> > >> >> ninja32_program(base); > >> >> - /* FIXME: Should we disable them at remove ? */ > >> > > >> > After looking at the driver history I think that the comment is about > >> > ninja32_program() enabling interrupt lines (which don't get disabled when > >> > the host controller is detached from the driver) not about the cleanup > >> > done during ata_pci_remove_one(). Alan, is this correct? > >> > > >> >> return ata_host_activate(host, dev->irq, ata_bmdma_interrupt, > >> >> IRQF_SHARED, &ninja32_sht); > >> >> } > >> > > >> > Best regards, > >> > -- > >> > Bartlomiej Zolnierkiewicz > >> > Samsung R&D Institute Poland > >> > Samsung Electronics > >> > > >> If that is the case then I will disable the interrupt lines for the > >> host in this driver's > >> remove function. > > > > Unless you have hardware to test such change (to check that there are no > > side-effects) just moving FIXME to ninja32_program() seems to be a better > > approach for now.. > > > > Best regards, > > -- > > Bartlomiej Zolnierkiewicz > > Samsung R&D Institute Poland > > Samsung Electronics > > > Very well I will send in a patch moving this fix me.
Please wait with this to give a chance for somebody more familiar with pata_ninja32 driver/hardware to comment on it. There is absolutely no need to rush with this change.. Best regards, -- Bartlomiej Zolnierkiewicz Samsung R&D Institute Poland Samsung Electronics -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
