Re: [PATCH 1/2] staging: iio replaced kmalloc with local variables.

From: Joe Perches
Date: Mon Jun 06 2011 - 18:11:04 EST

On Mon, 2011-06-06 at 14:55 -0700, Greg KH wrote:
> On Tue, Jun 07, 2011 at 12:37:37AM +0530, anish wrote:
> > From: anish kumar <anish198519851985@xxxxxxxxx>
> > Replace kmalloc with local variables as it was un-necessary and
> > also removed the redudant code after this change.
> SPI data, like USB data, has to come from kmalloced data, not from the
> stack, or bad things can, and will, happen.

Perhaps just add a comment like:

+ u8 *tx = kmalloc(2, GFP_KERNEL); /* can't be on stack */

It might be better to do a single kmalloc(4)
than 2 separate kmalloc(2)'s.

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