From: Dotan Barak Date: Thu, 17 Apr 2008 04:09:28 +0000 (-0700) Subject: IB/core: Check optional verbs before using them X-Git-Tag: v2.6.26-rc1~1156^2~40 X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=7ce5eacb45a7c819a6bec6ed486f27db9aab6ab6;p=karo-tx-linux.git IB/core: Check optional verbs before using them Make sure that a device implements the modify_srq and reg_phys_mr optional methods before calling them. Signed-off-by: Dotan Barak Signed-off-by: Roland Dreier --- diff --git a/drivers/infiniband/core/verbs.c b/drivers/infiniband/core/verbs.c index 86ed8af9c7e6..8ffb5f2c21f7 100644 --- a/drivers/infiniband/core/verbs.c +++ b/drivers/infiniband/core/verbs.c @@ -248,7 +248,9 @@ int ib_modify_srq(struct ib_srq *srq, struct ib_srq_attr *srq_attr, enum ib_srq_attr_mask srq_attr_mask) { - return srq->device->modify_srq(srq, srq_attr, srq_attr_mask, NULL); + return srq->device->modify_srq ? + srq->device->modify_srq(srq, srq_attr, srq_attr_mask, NULL) : + -ENOSYS; } EXPORT_SYMBOL(ib_modify_srq); @@ -672,6 +674,9 @@ struct ib_mr *ib_reg_phys_mr(struct ib_pd *pd, { struct ib_mr *mr; + if (!pd->device->reg_phys_mr) + return ERR_PTR(-ENOSYS); + mr = pd->device->reg_phys_mr(pd, phys_buf_array, num_phys_buf, mr_access_flags, iova_start);