[dpdk-dev] [PATCH 2/2] baseband/fpga_lte_fec: fix segfaults with debug

[Maxime Coquelin]

When RTE_LIBRTE_BBDEV_DEBUG is enabled, rte_device's driver
pointer is dereferenced twice in fpga_lte_fec's probe callback.
It causes a segmentation fault because this pointer is only
assigned after probe callback call.

This patch makes use of rte_pci_driver pointer instead

Fixes: efd453698c49 ("baseband/fpga_lte_fec: add driver for FEC on FPGA")
Cc: stable at dpdk.org

Signed-off-by: Maxime Coquelin <maxime.coquelin at redhat.com>
---
 drivers/baseband/fpga_lte_fec/fpga_lte_fec.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/baseband/fpga_lte_fec/fpga_lte_fec.c b/drivers/baseband/fpga_lte_fec/fpga_lte_fec.c
index 37018b9c7f..c80721be96 100644
--- a/drivers/baseband/fpga_lte_fec/fpga_lte_fec.c
+++ b/drivers/baseband/fpga_lte_fec/fpga_lte_fec.c
@@ -2328,7 +2328,7 @@ fpga_lte_fec_init(struct rte_bbdev *dev, struct rte_pci_driver *drv)
 
 	rte_bbdev_log_debug(
 			"Init device %s [%s] @ virtaddr %p phyaddr %#"PRIx64,
-			dev->device->driver->name, dev->data->name,
+			drv->driver.name, dev->data->name,
 			(void *)pci_dev->mem_resource[0].addr,
 			pci_dev->mem_resource[0].phys_addr);
 }
@@ -2383,7 +2383,7 @@ fpga_lte_fec_probe(struct rte_pci_driver *pci_drv,
 		((uint16_t)(version_id >> 16)), ((uint16_t)version_id));
 
 #ifdef RTE_LIBRTE_BBDEV_DEBUG
-	if (!strcmp(bbdev->device->driver->name,
+	if (!strcmp(pci_drv->driver.name,
 			RTE_STR(FPGA_LTE_FEC_PF_DRIVER_NAME)))
 		print_static_reg_debug_info(d->mmio_base);
 #endif
-- 
2.26.2