Allocating the interrupt handle is a waste of memory if no device is probed later (like for example, if a allowlist is passed). Instead, allocate this handle at the time probe_device is called.
Signed-off-by: David Marchand <[email protected]> --- drivers/bus/ifpga/ifpga_bus.c | 29 ++++++++++++++++------------- 1 file changed, 16 insertions(+), 13 deletions(-) diff --git a/drivers/bus/ifpga/ifpga_bus.c b/drivers/bus/ifpga/ifpga_bus.c index 2c22329f65..af77d69ef6 100644 --- a/drivers/bus/ifpga/ifpga_bus.c +++ b/drivers/bus/ifpga/ifpga_bus.c @@ -144,14 +144,6 @@ ifpga_scan_one(struct rte_rawdev *rawdev, afu_dev->id.uuid.uuid_high = 0; afu_dev->id.port = afu_pr_conf.afu_id.port; - /* Allocate interrupt instance */ - afu_dev->intr_handle = - rte_intr_instance_alloc(RTE_INTR_INSTANCE_F_PRIVATE); - if (afu_dev->intr_handle == NULL) { - IFPGA_BUS_ERR("Failed to allocate intr handle"); - goto end; - } - if (rawdev->dev_ops && rawdev->dev_ops->dev_info_get) rawdev->dev_ops->dev_info_get(rawdev, afu_dev, sizeof(*afu_dev)); @@ -177,10 +169,7 @@ ifpga_scan_one(struct rte_rawdev *rawdev, end: rte_kvargs_free(kvlist); free(path); - if (afu_dev) { - rte_intr_instance_free(afu_dev->intr_handle); - free(afu_dev); - } + free(afu_dev); return NULL; } @@ -272,8 +261,22 @@ ifpga_probe_device(struct rte_driver *drv, struct rte_device *dev) { struct rte_afu_device *afu_dev = RTE_BUS_DEVICE(dev, *afu_dev); struct rte_afu_driver *afu_drv = RTE_BUS_DRIVER(drv, *afu_drv); + int ret; + + afu_dev->intr_handle = + rte_intr_instance_alloc(RTE_INTR_INSTANCE_F_PRIVATE); + if (afu_dev->intr_handle == NULL) { + IFPGA_BUS_ERR("Failed to allocate intr handle"); + return -ENOMEM; + } + + ret = afu_drv->probe(afu_dev); + if (ret != 0) { + rte_intr_instance_free(afu_dev->intr_handle); + afu_dev->intr_handle = NULL; + } - return afu_drv->probe(afu_dev); + return ret; } /* -- 2.54.0
