diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/mtd/nand/bf5xx_nand.c | 38 |
1 files changed, 24 insertions, 14 deletions
diff --git a/drivers/mtd/nand/bf5xx_nand.c b/drivers/mtd/nand/bf5xx_nand.c index 6cf7fb86c25..9af2a2cc115 100644 --- a/drivers/mtd/nand/bf5xx_nand.c +++ b/drivers/mtd/nand/bf5xx_nand.c @@ -549,7 +549,6 @@ static void bf5xx_nand_dma_write_buf(struct mtd_info *mtd, /* * System initialization functions */ - static int bf5xx_nand_dma_init(struct bf5xx_nand_info *info) { int ret; @@ -582,6 +581,13 @@ static int bf5xx_nand_dma_init(struct bf5xx_nand_info *info) return 0; } +static void bf5xx_nand_dma_remove(struct bf5xx_nand_info *info) +{ + /* Free NFC DMA channel */ + if (hardware_ecc) + free_dma(CH_NFC); +} + /* * BF5XX NFC hardware initialization * - pin mux setup @@ -658,6 +664,7 @@ static int __devexit bf5xx_nand_remove(struct platform_device *pdev) } peripheral_free_list(bfin_nfc_pin_req); + bf5xx_nand_dma_remove(info); /* free the common resources */ kfree(info); @@ -683,21 +690,21 @@ static int __devinit bf5xx_nand_probe(struct platform_device *pdev) dev_dbg(&pdev->dev, "(%p)\n", pdev); + if (!plat) { + dev_err(&pdev->dev, "no platform specific information\n"); + return -EINVAL; + } + if (peripheral_request_list(bfin_nfc_pin_req, DRV_NAME)) { dev_err(&pdev->dev, "requesting Peripherals failed\n"); return -EFAULT; } - if (!plat) { - dev_err(&pdev->dev, "no platform specific information\n"); - goto exit_error; - } - info = kzalloc(sizeof(*info), GFP_KERNEL); if (info == NULL) { dev_err(&pdev->dev, "no memory for flash info\n"); err = -ENOMEM; - goto exit_error; + goto out_err_kzalloc; } platform_set_drvdata(pdev, info); @@ -741,8 +748,8 @@ static int __devinit bf5xx_nand_probe(struct platform_device *pdev) /* initialise the hardware */ err = bf5xx_nand_hw_init(info); - if (err != 0) - goto exit_error; + if (err) + goto out_err_hw_init; /* setup hardware ECC data struct */ if (hardware_ecc) { @@ -772,7 +779,7 @@ static int __devinit bf5xx_nand_probe(struct platform_device *pdev) /* scan hardware nand chip and setup mtd info data struct */ if (nand_scan(mtd, 1)) { err = -ENXIO; - goto exit_error; + goto out_err_nand_scan; } /* add NAND partition */ @@ -781,11 +788,14 @@ static int __devinit bf5xx_nand_probe(struct platform_device *pdev) dev_dbg(&pdev->dev, "initialised ok\n"); return 0; -exit_error: - bf5xx_nand_remove(pdev); +out_err_nand_scan: + bf5xx_nand_dma_remove(info); +out_err_hw_init: + platform_set_drvdata(pdev, NULL); + kfree(info); +out_err_kzalloc: + peripheral_free_list(bfin_nfc_pin_req); - if (err == 0) - err = -EINVAL; return err; } |