[xlnx:master 9663/10253] drivers/net/ethernet/xilinx/xilinx_axienet_main.c:204 axienet_dma_bd_init() error: uninitialized symbol 'ret'.

[xlnx:master 9663/10253] drivers/net/ethernet/xilinx/xilinx_axienet_main.c:204 axienet_dma_bd_init() error: uninitialized symbol 'ret'.

[kernel test robot]

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CC: kbuild-all(a)lists.01.org
CC: linux-arm-kernel(a)lists.infradead.org
TO: Saurabh Sengar <saurabh.singh@xilinx.com>
CC: Michal Simek <monstr@monstr.eu>
CC: Appana Durga Kedareswara Rao <appana.durga.rao@xilinx.com>
CC: Radhey Shyam Pandey <radhey.shyam.pandey@xilinx.com>

tree:   https://github.com/Xilinx/linux-xlnx master
head:   ebc67ce2d1e7fa15806c226e2461ffd7b42cd188
commit: 0f447249ba48721e24292b1ddacf1b4b4e21d9a7 [9663/10253] net: axienet: added multichannel DMA support
:::::: branch date: 5 days ago
:::::: commit date: 7 months ago
config: i386-randconfig-m021-20200920 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-15) 9.3.0

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>

smatch warnings:
drivers/net/ethernet/xilinx/xilinx_axienet_main.c:204 axienet_dma_bd_init() error: uninitialized symbol 'ret'.

# https://github.com/Xilinx/linux-xlnx/commit/0f447249ba48721e24292b1ddacf1b4b4e21d9a7
git remote add xlnx https://github.com/Xilinx/linux-xlnx
git fetch --no-tags xlnx master
git checkout 0f447249ba48721e24292b1ddacf1b4b4e21d9a7
vim +/ret +204 drivers/net/ethernet/xilinx/xilinx_axienet_main.c

8a3b7a252dca9f Daniel Borkmann              2012-01-19  169  
8a3b7a252dca9f Daniel Borkmann              2012-01-19  170  /**
8a3b7a252dca9f Daniel Borkmann              2012-01-19  171   * axienet_dma_bd_init - Setup buffer descriptor rings for Axi DMA
8a3b7a252dca9f Daniel Borkmann              2012-01-19  172   * @ndev:	Pointer to the net_device structure
8a3b7a252dca9f Daniel Borkmann              2012-01-19  173   *
b0d081c524b46c Michal Simek                 2015-05-05  174   * Return: 0, on success -ENOMEM, on failure
8a3b7a252dca9f Daniel Borkmann              2012-01-19  175   *
8a3b7a252dca9f Daniel Borkmann              2012-01-19  176   * This function is called to initialize the Rx and Tx DMA descriptor
8a3b7a252dca9f Daniel Borkmann              2012-01-19  177   * rings. This initializes the descriptors with required default values
8a3b7a252dca9f Daniel Borkmann              2012-01-19  178   * and is called when Axi Ethernet driver reset is called.
8a3b7a252dca9f Daniel Borkmann              2012-01-19  179   */
8a3b7a252dca9f Daniel Borkmann              2012-01-19  180  static int axienet_dma_bd_init(struct net_device *ndev)
8a3b7a252dca9f Daniel Borkmann              2012-01-19  181  {
0f447249ba4872 Saurabh Sengar               2020-01-24  182  	int i, ret;
8a3b7a252dca9f Daniel Borkmann              2012-01-19  183  	struct axienet_local *lp = netdev_priv(ndev);
8a3b7a252dca9f Daniel Borkmann              2012-01-19  184  
0f447249ba4872 Saurabh Sengar               2020-01-24  185  #ifdef CONFIG_AXIENET_HAS_MCDMA
0f447249ba4872 Saurabh Sengar               2020-01-24  186  	for_each_tx_dma_queue(lp, i) {
0f447249ba4872 Saurabh Sengar               2020-01-24  187  		ret = axienet_mcdma_tx_q_init(ndev, lp->dq[i]);
0f447249ba4872 Saurabh Sengar               2020-01-24  188  		if (ret != 0)
0f447249ba4872 Saurabh Sengar               2020-01-24  189  			break;
0f447249ba4872 Saurabh Sengar               2020-01-24  190  	}
0f447249ba4872 Saurabh Sengar               2020-01-24  191  #endif
0f447249ba4872 Saurabh Sengar               2020-01-24  192  	for_each_rx_dma_queue(lp, i) {
0f447249ba4872 Saurabh Sengar               2020-01-24  193  #ifdef CONFIG_AXIENET_HAS_MCDMA
0f447249ba4872 Saurabh Sengar               2020-01-24  194  		ret = axienet_mcdma_rx_q_init(ndev, lp->dq[i]);
0f447249ba4872 Saurabh Sengar               2020-01-24  195  #else
0f447249ba4872 Saurabh Sengar               2020-01-24  196  		ret = axienet_dma_q_init(ndev, lp->dq[i]);
0f447249ba4872 Saurabh Sengar               2020-01-24  197  #endif
0f447249ba4872 Saurabh Sengar               2020-01-24  198  		if (ret != 0) {
0f447249ba4872 Saurabh Sengar               2020-01-24  199  			netdev_err(ndev, "%s: Failed to init DMA buf\n", __func__);
0f447249ba4872 Saurabh Sengar               2020-01-24  200  			break;
8a3b7a252dca9f Daniel Borkmann              2012-01-19  201  		}
2eb694beda465d Appana Durga Kedareswara Rao 2020-01-24  202  	}
2eb694beda465d Appana Durga Kedareswara Rao 2020-01-24  203  
0f447249ba4872 Saurabh Sengar               2020-01-24 @204  	return ret;
8a3b7a252dca9f Daniel Borkmann              2012-01-19  205  }
8a3b7a252dca9f Daniel Borkmann              2012-01-19  206  

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org

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