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    Subject[PATCH v3 14/27] staging: ccree: handle end of sg list gracefully
    Date
    If we are asked for number of entries of an offset bigger than the
    sg list we should not crash.

    Cc: stable@vger.kernel.org
    Signed-off-by: Gilad Ben-Yossef <gilad@benyossef.com>
    ---
    drivers/staging/ccree/ssi_buffer_mgr.c | 2 +-
    1 file changed, 1 insertion(+), 1 deletion(-)

    diff --git a/drivers/staging/ccree/ssi_buffer_mgr.c b/drivers/staging/ccree/ssi_buffer_mgr.c
    index 78288ed..0f71264 100644
    --- a/drivers/staging/ccree/ssi_buffer_mgr.c
    +++ b/drivers/staging/ccree/ssi_buffer_mgr.c
    @@ -94,7 +94,7 @@ static unsigned int cc_get_sgl_nents(struct device *dev,
    {
    unsigned int nents = 0;

    - while (nbytes) {
    + while (nbytes && sg_list) {
    if (sg_list->length) {
    nents++;
    /* get the number of bytes in the last entry */
    --
    2.7.4
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