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SubjectRe: [PATCH 3/3] [media] au0828-video: Move two assignments in au0828_init_isoc()
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>> From: Markus Elfring <elfring@users.sourceforge.net>
>> Date: Mon, 24 Oct 2016 22:44:02 +0200
>>
>> Move the assignment for the data structure members "isoc_copy"
>> and "num_bufs" behind the source code for memory allocations
>> by this function.
>
> I don't see the point,

Another explanation try …


> dropping this patch.

I proposed that these assignments should only be performed after the required
memory allocations succeeded. Is this detail worth for further considerations?


>> Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
>> ---
>> drivers/media/usb/au0828/au0828-video.c | 5 ++---
>> 1 file changed, 2 insertions(+), 3 deletions(-)
>>
>> diff --git a/drivers/media/usb/au0828/au0828-video.c b/drivers/media/usb/au0828/au0828-video.c
>> index b5c88a7..5ebda64 100644
>> --- a/drivers/media/usb/au0828/au0828-video.c
>> +++ b/drivers/media/usb/au0828/au0828-video.c
>> @@ -218,9 +218,6 @@ static int au0828_init_isoc(struct au0828_dev *dev, int max_packets,
>> int rc;
>>
>> au0828_isocdbg("au0828: called au0828_prepare_isoc\n");
>> -
>> - dev->isoc_ctl.isoc_copy = isoc_copy;
>> - dev->isoc_ctl.num_bufs = num_bufs;
>> dev->isoc_ctl.urb = kcalloc(num_bufs,
>> sizeof(*dev->isoc_ctl.urb),
>> GFP_KERNEL);
>> @@ -240,6 +237,7 @@ static int au0828_init_isoc(struct au0828_dev *dev, int max_packets,
>> dev->isoc_ctl.buf = NULL;
>>
>> sb_size = max_packets * dev->isoc_ctl.max_pkt_size;
>> + dev->isoc_ctl.num_bufs = num_bufs;
>>
>> /* allocate urbs and transfer buffers */
>> for (i = 0; i < dev->isoc_ctl.num_bufs; i++) {
>> @@ -276,6 +274,7 @@ static int au0828_init_isoc(struct au0828_dev *dev, int max_packets,
>> k += dev->isoc_ctl.max_pkt_size;
>> }
>> }
>> + dev->isoc_ctl.isoc_copy = isoc_copy;
>>
>> /* submit urbs and enables IRQ */
>> for (i = 0; i < dev->isoc_ctl.num_bufs; i++) {
>>

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