Messages in this thread | | | Date | Tue, 2 Aug 2011 22:09:34 +0200 | From | Andrea Righi <> | Subject | Re: [PATCH 1/11] kernel/kfifo.c: trivial: use BUG_ON |
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On Tue, Aug 02, 2011 at 09:27:38PM +0200, Julia Lawall wrote: > From: Julia Lawall <julia@diku.dk> > > Allow the function to return 0 when 0 elements are asked for rather than > crashing the kernel with BUG. > > Signed-off-by: Julia Lawall <julia@diku.dk>
Reviewed-by: Andrea Righi <andrea@betterlinux.com>
Thanks, -Andrea
> > --- > var/julia/linuxcopy/kernel/kfifo.c | 6 ------ > 1 file changed, 6 deletions(-) > > diff -u -p a/kernel/kfifo.c b/kernel/kfifo.c > index 01a0700..9f928ef 100644 > --- a/var/linuxes/linux-next/kernel/kfifo.c > +++ b/var/julia/linuxcopy/kernel/kfifo.c > @@ -562,9 +562,6 @@ EXPORT_SYMBOL(__kfifo_to_user_r); > unsigned int __kfifo_dma_in_prepare_r(struct __kfifo *fifo, > struct scatterlist *sgl, int nents, unsigned int len, size_t recsize) > { > - if (!nents) > - BUG(); > - > len = __kfifo_max_r(len, recsize); > > if (len + recsize > kfifo_unused(fifo)) > @@ -586,9 +583,6 @@ EXPORT_SYMBOL(__kfifo_dma_in_finish_r); > unsigned int __kfifo_dma_out_prepare_r(struct __kfifo *fifo, > struct scatterlist *sgl, int nents, unsigned int len, size_t recsize) > { > - if (!nents) > - BUG(); > - > len = __kfifo_max_r(len, recsize); > > if (len + recsize > fifo->in - fifo->out)
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