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[PATCH] staging: rtl8712: fix coding style error reported from checkpatch

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  [PATCH] staging: rtl8712: fix coding style error reported from checkpatch Omri Arad <omriarad3@gmail.com> - 2016-09-12 20:10 +0200
    Re: [PATCH] staging: rtl8712: fix coding style error reported from  checkpatch Joe Perches <joe@perches.com> - 2016-09-12 20:20 +0200

#1481778 — [PATCH] staging: rtl8712: fix coding style error reported from checkpatch

removed the following:
ERROR: code indent should use tabs where possible
WARNING: please, no spaces at the start of a line
WARNING: Statements should start on a tabstop

Signed-off-by: Omri Arad <omriarad3@gmail.com>
---
 drivers/staging/rtl8712/rtl871x_ioctl_linux.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/staging/rtl8712/rtl871x_ioctl_linux.c b/drivers/staging/rtl8712/rtl871x_ioctl_linux.c
index e205adf..475e790 100644
--- a/drivers/staging/rtl8712/rtl871x_ioctl_linux.c
+++ b/drivers/staging/rtl8712/rtl871x_ioctl_linux.c
@@ -1976,9 +1976,9 @@ static int r871x_get_ap_info(struct net_device *dev,
 	if (pdata->length >= 32) {
 		if (copy_from_user(data, pdata->pointer, 32))
 			return -EINVAL;
-                data[32] = 0;
+		data[32] = 0;
 	} else {
-		 return -EINVAL;
+		return -EINVAL;
 	}
 	spin_lock_irqsave(&(pmlmepriv->scanned_queue.lock), irqL);
 	phead = &queue->queue;
-- 
2.5.0

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#1481793 — Re: [PATCH] staging: rtl8712: fix coding style error reported from checkpatch

On Mon, 2016-09-12 at 21:02 +0300, Omri Arad wrote:
[]
> diff --git a/drivers/staging/rtl8712/rtl871x_ioctl_linux.c b/drivers/staging/rtl8712/rtl871x_ioctl_linux.c
[]
> @@ -1976,9 +1976,9 @@ static int r871x_get_ap_info(struct net_device *dev,
>  	if (pdata->length >= 32) {
>  		if (copy_from_user(data, pdata->pointer, 32))
>  			return -EINVAL;
> -                data[32] = 0;
> +		data[32] = 0;
>  	} else {
> -		 return -EINVAL;
> +		return -EINVAL;
>  	}
>  	spin_lock_irqsave(&(pmlmepriv->scanned_queue.lock), irqL);
>  	phead = &queue->queue;

Please don't blindly follow checkpatch messages but look to see
how the code can be improved beyond what checkpatch emits.

Perhaps more pleasant to read would be to rewrite this block like:

	if (pdata->length < 32 ||
	    copy_from_user(data, pdata->pointer, 32))
		return -EINVAL;
	data[32] = 0;

Perhaps as well the literal 32 uses here and the 33 in the declaration
of data uses should be some #define or sizeof or ARRAY_SIZE.

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