[PATCH 3/3] soc/fsl/qe: Use common error handling code in ucc_fast_init()

[SF Markus Elfring]

From: Markus Elfring <elfr...@users.sourceforge.net>
Date: Wed, 13 Dec 2017 18:18:56 +0100

Add jump targets so that a bit of exception handling can be better reused
at the end of this function.

Signed-off-by: Markus Elfring <elfr...@users.sourceforge.net>
---
 drivers/soc/fsl/qe/ucc_fast.c | 32 ++++++++++++++++----------------
 1 file changed, 16 insertions(+), 16 deletions(-)

diff --git a/drivers/soc/fsl/qe/ucc_fast.c b/drivers/soc/fsl/qe/ucc_fast.c
index 2092bfdcf1bc..268dfc5dc89b 100644
--- a/drivers/soc/fsl/qe/ucc_fast.c
+++ b/drivers/soc/fsl/qe/ucc_fast.c
@@ -269,8 +269,7 @@ int ucc_fast_init(struct ucc_fast_info * uf_info, struct 
ucc_fast_private ** ucc
                printk(KERN_ERR "%s: cannot allocate MURAM for TX FIFO\n",
                        __func__);
                uccf->ucc_fast_tx_virtual_fifo_base_offset = 0;
-               ucc_fast_free(uccf);
-               return -ENOMEM;
+               goto free_nomem;
        }
 
        /* Allocate memory for Rx Virtual Fifo */
@@ -282,8 +281,7 @@ int ucc_fast_init(struct ucc_fast_info * uf_info, struct 
ucc_fast_private ** ucc
                printk(KERN_ERR "%s: cannot allocate MURAM for RX FIFO\n",
                        __func__);
                uccf->ucc_fast_rx_virtual_fifo_base_offset = 0;
-               ucc_fast_free(uccf);
-               return -ENOMEM;
+               goto free_nomem;
        }
 
        /* Set Virtual Fifo registers */
@@ -312,8 +310,7 @@ int ucc_fast_init(struct ucc_fast_info * uf_info, struct 
ucc_fast_private ** ucc
                                        COMM_DIR_RX)) {
                        printk(KERN_ERR "%s: illegal value for RX clock\n",
                               __func__);
-                       ucc_fast_free(uccf);
-                       return -EINVAL;
+                       goto free_inval;
                }
                /* Tx clock routing */
                if ((uf_info->tx_clock != QE_CLK_NONE) &&
@@ -321,8 +318,7 @@ int ucc_fast_init(struct ucc_fast_info * uf_info, struct 
ucc_fast_private ** ucc
                                        COMM_DIR_TX)) {
                        printk(KERN_ERR "%s: illegal value for TX clock\n",
                               __func__);
-                       ucc_fast_free(uccf);
-                       return -EINVAL;
+                       goto free_inval;
                }
        } else {
                /* tdm Rx clock routing */
@@ -330,8 +326,7 @@ int ucc_fast_init(struct ucc_fast_info * uf_info, struct 
ucc_fast_private ** ucc
                    ucc_set_tdm_rxtx_clk(uf_info->tdm_num, uf_info->rx_clock,
                                         COMM_DIR_RX)) {
                        pr_err("%s: illegal value for RX clock", __func__);
-                       ucc_fast_free(uccf);
-                       return -EINVAL;
+                       goto free_inval;
                }
 
                /* tdm Tx clock routing */
@@ -339,8 +334,7 @@ int ucc_fast_init(struct ucc_fast_info * uf_info, struct 
ucc_fast_private ** ucc
                    ucc_set_tdm_rxtx_clk(uf_info->tdm_num, uf_info->tx_clock,
                                         COMM_DIR_TX)) {
                        pr_err("%s: illegal value for TX clock", __func__);
-                       ucc_fast_free(uccf);
-                       return -EINVAL;
+                       goto free_inval;
                }
 
                /* tdm Rx sync clock routing */
@@ -348,8 +342,7 @@ int ucc_fast_init(struct ucc_fast_info * uf_info, struct 
ucc_fast_private ** ucc
                    ucc_set_tdm_rxtx_sync(uf_info->tdm_num, uf_info->rx_sync,
                                          COMM_DIR_RX)) {
                        pr_err("%s: illegal value for RX clock", __func__);
-                       ucc_fast_free(uccf);
-                       return -EINVAL;
+                       goto free_inval;
                }
 
                /* tdm Tx sync clock routing */
@@ -357,8 +350,7 @@ int ucc_fast_init(struct ucc_fast_info * uf_info, struct 
ucc_fast_private ** ucc
                    ucc_set_tdm_rxtx_sync(uf_info->tdm_num, uf_info->tx_sync,
                                          COMM_DIR_TX)) {
                        pr_err("%s: illegal value for TX clock", __func__);
-                       ucc_fast_free(uccf);
-                       return -EINVAL;
+                       goto free_inval;
                }
        }
 
@@ -374,6 +366,14 @@ int ucc_fast_init(struct ucc_fast_info * uf_info, struct 
ucc_fast_private ** ucc
 
        *uccf_ret = uccf;
        return 0;
+
+free_nomem:
+       ucc_fast_free(uccf);
+       return -ENOMEM;
+
+free_inval:
+       ucc_fast_free(uccf);
+       return -EINVAL;
 }
 EXPORT_SYMBOL(ucc_fast_init);
 
-- 
2.15.1