diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/mtd/nand/mxs_nand.c | 24 |
1 files changed, 15 insertions, 9 deletions
diff --git a/drivers/mtd/nand/mxs_nand.c b/drivers/mtd/nand/mxs_nand.c index ba019a0763..b5bbd889ff 100644 --- a/drivers/mtd/nand/mxs_nand.c +++ b/drivers/mtd/nand/mxs_nand.c @@ -1090,24 +1090,29 @@ int mxs_nand_init(struct mxs_nand_info *info) (struct mxs_gpmi_regs *)MXS_GPMI_BASE; struct mxs_bch_regs *bch_regs = (struct mxs_bch_regs *)MXS_BCH_BASE; - int i = 0, j; + int i = 0, j, ret = 0; info->desc = malloc(sizeof(struct mxs_dma_desc *) * MXS_NAND_DMA_DESCRIPTOR_COUNT); - if (!info->desc) + if (!info->desc) { + ret = -ENOMEM; goto err1; + } /* Allocate the DMA descriptors. */ for (i = 0; i < MXS_NAND_DMA_DESCRIPTOR_COUNT; i++) { info->desc[i] = mxs_dma_desc_alloc(); - if (!info->desc[i]) + if (!info->desc[i]) { + ret = -ENOMEM; goto err2; + } } /* Init the DMA controller. */ for (j = MXS_DMA_CHANNEL_AHB_APBH_GPMI0; j <= MXS_DMA_CHANNEL_AHB_APBH_GPMI7; j++) { - if (mxs_dma_init_channel(j)) + ret = mxs_dma_init_channel(j); + if (ret) goto err3; } @@ -1127,15 +1132,16 @@ int mxs_nand_init(struct mxs_nand_info *info) return 0; err3: - for (--j; j >= 0; j--) + for (--j; j >= MXS_DMA_CHANNEL_AHB_APBH_GPMI0; j--) mxs_dma_release(j); err2: - free(info->desc); -err1: for (--i; i >= 0; i--) mxs_dma_desc_free(info->desc[i]); - printf("MXS NAND: Unable to allocate DMA descriptors\n"); - return -ENOMEM; + free(info->desc); +err1: + if (ret == -ENOMEM) + printf("MXS NAND: Unable to allocate DMA descriptors\n"); + return ret; } /*! |
