3.2.58-rc1 review patch. If anyone has any objections, please let me know.
------------------ From: Yann Droneaud <[email protected]> commit 5bdb0f02add5994b0bc17494f4726925ca5d6ba1 upstream. In case of error when writing to userspace, function ehca_create_cq() does not set an error code before following its error path. This patch sets the error code to -EFAULT when ib_copy_to_udata() fails. This was caught when using spatch (aka. coccinelle) to rewrite call to ib_copy_{from,to}_udata(). Link: https://www.gitorious.org/opteya/coccib/source/75ebf2c1033c64c1d81df13e4ae44ee99c989eba:ib_copy_udata.cocci Link: http://marc.info/[email protected] Signed-off-by: Yann Droneaud <[email protected]> Signed-off-by: Roland Dreier <[email protected]> Signed-off-by: Ben Hutchings <[email protected]> --- drivers/infiniband/hw/ehca/ehca_cq.c | 1 + 1 file changed, 1 insertion(+) --- a/drivers/infiniband/hw/ehca/ehca_cq.c +++ b/drivers/infiniband/hw/ehca/ehca_cq.c @@ -296,6 +296,7 @@ struct ib_cq *ehca_create_cq(struct ib_d (my_cq->galpas.user.fw_handle & (PAGE_SIZE - 1)); if (ib_copy_to_udata(udata, &resp, sizeof(resp))) { ehca_err(device, "Copy to udata failed."); + cq = ERR_PTR(-EFAULT); goto create_cq_exit4; } } -- 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/
