target/linux/ipq806x/patches-4.0/702-stmmac-move-error-path-at-the-end-of-stmmac_probe_co.patch

   1 From 0149d275415cd1b2382ce94e5eb32641590097d0 Mon Sep 17 00:00:00 2001
   2 From: Mathieu Olivari <mathieu@codeaurora.org>
   3 Date: Fri, 8 May 2015 15:57:12 -0700
   4 Subject: [PATCH 2/8] stmmac: move error path at the end of
   5  stmmac_probe_config_dt()
   6
   7 We will want to do additional clean-up on certain errors. Therefore,
   8 this change moves the error path at the end of the function for better
   9 code readability.
  10
  11 This patch doesn't change anything functionally.
  12
  13 Signed-off-by: Mathieu Olivari <mathieu@codeaurora.org>
  14 ---
  15  .../net/ethernet/stmicro/stmmac/stmmac_platform.c  | 22 ++++++++++++++++------
  16  1 file changed, 16 insertions(+), 6 deletions(-)
  17
  18 --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
  19 +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
  20 @@ -129,13 +129,18 @@ static int stmmac_probe_config_dt(struct
  21         struct device_node *np = pdev->dev.of_node;
  22         struct stmmac_dma_cfg *dma_cfg;
  23         const struct of_device_id *device;
  24 +       int ret;
  25
  26 -       if (!np)
  27 -               return -ENODEV;
  28 +       if (!np) {
  29 +               ret = -ENODEV;
  30 +               goto err;
  31 +       }
  32
  33         device = of_match_device(stmmac_dt_ids, &pdev->dev);
  34 -       if (!device)
  35 -               return -ENODEV;
  36 +       if (!device) {
  37 +               ret = -ENODEV;
  38 +               goto err;
  39 +       }
  40
  41         if (device->data) {
  42                 const struct stmmac_of_data *data = device->data;
  43 @@ -231,8 +236,10 @@ static int stmmac_probe_config_dt(struct
  44         if (of_find_property(np, "snps,pbl", NULL)) {
  45                 dma_cfg = devm_kzalloc(&pdev->dev, sizeof(*dma_cfg),
  46                                        GFP_KERNEL);
  47 -               if (!dma_cfg)
  48 -                       return -ENOMEM;
  49 +               if (!dma_cfg) {
  50 +                       ret = -ENOMEM;
  51 +                       goto err;
  52 +               }
  53                 plat->dma_cfg = dma_cfg;
  54                 of_property_read_u32(np, "snps,pbl", &dma_cfg->pbl);
  55                 dma_cfg->fixed_burst =
  56 @@ -250,6 +257,9 @@ static int stmmac_probe_config_dt(struct
  57         }
  58
  59         return 0;
  60 +
  61 +err:
  62 +       return ret;
  63  }
  64  #else
  65  static int stmmac_probe_config_dt(struct platform_device *pdev,