lkml.org 
[lkml]   [2011]   [Aug]   [2]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    Patch in this message
    /
    Date
    From
    SubjectRe: [PATCH 1/11] kernel/kfifo.c: trivial: use BUG_ON
    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>

    ---
    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)

    \
     
     \ /
      Last update: 2011-08-02 21:31    [W:0.021 / U:92.168 seconds]
    ©2003-2016 Jasper Spaans. hosted at Digital OceanAdvertise on this site