3.5.7.3 -stable review patch. If anyone has any objections, please let me know.
------------------ From: Tatyana Nikolova <[email protected]> commit 7d9c199a55200c9b9fcad08e150470d02fb385be upstream. Signed-off-by: Tatyana Nikolova <[email protected]> Signed-off-by: Roland Dreier <[email protected]> Signed-off-by: Herton Ronaldo Krzesinski <[email protected]> --- drivers/infiniband/hw/nes/nes_verbs.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/infiniband/hw/nes/nes_verbs.c b/drivers/infiniband/hw/nes/nes_verbs.c index 2359568..da84ea3 100644 --- a/drivers/infiniband/hw/nes/nes_verbs.c +++ b/drivers/infiniband/hw/nes/nes_verbs.c @@ -2561,6 +2561,11 @@ static struct ib_mr *nes_reg_user_mr(struct ib_pd *pd, u64 start, u64 length, return ibmr; case IWNES_MEMREG_TYPE_QP: case IWNES_MEMREG_TYPE_CQ: + if (!region->length) { + nes_debug(NES_DBG_MR, "Unable to register zero length region for CQ\n"); + ib_umem_release(region); + return ERR_PTR(-EINVAL); + } nespbl = kzalloc(sizeof(*nespbl), GFP_KERNEL); if (!nespbl) { nes_debug(NES_DBG_MR, "Unable to allocate PBL\n"); -- 1.7.9.5 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
