diff options
Diffstat (limited to 'drivers/net/wireless/cw1200/fwio.c')
-rw-r--r-- | drivers/net/wireless/cw1200/fwio.c | 40 |
1 files changed, 24 insertions, 16 deletions
diff --git a/drivers/net/wireless/cw1200/fwio.c b/drivers/net/wireless/cw1200/fwio.c index 6f1b9aace8b..30e7646d04a 100644 --- a/drivers/net/wireless/cw1200/fwio.c +++ b/drivers/net/wireless/cw1200/fwio.c @@ -66,25 +66,31 @@ static int cw1200_load_firmware_cw1200(struct cw1200_common *priv) do { \ ret = cw1200_apb_write_32(priv, CW1200_APB(reg), (val)); \ if (ret < 0) \ - goto error; \ + goto exit; \ + } while (0) +#define APB_WRITE2(reg, val) \ + do { \ + ret = cw1200_apb_write_32(priv, CW1200_APB(reg), (val)); \ + if (ret < 0) \ + goto free_buffer; \ } while (0) #define APB_READ(reg, val) \ do { \ ret = cw1200_apb_read_32(priv, CW1200_APB(reg), &(val)); \ if (ret < 0) \ - goto error; \ + goto free_buffer; \ } while (0) #define REG_WRITE(reg, val) \ do { \ ret = cw1200_reg_write_32(priv, (reg), (val)); \ if (ret < 0) \ - goto error; \ + goto exit; \ } while (0) #define REG_READ(reg, val) \ do { \ ret = cw1200_reg_read_32(priv, (reg), &(val)); \ if (ret < 0) \ - goto error; \ + goto exit; \ } while (0) switch (priv->hw_revision) { @@ -142,14 +148,14 @@ static int cw1200_load_firmware_cw1200(struct cw1200_common *priv) ret = request_firmware(&firmware, fw_path, priv->pdev); if (ret) { pr_err("Can't load firmware file %s.\n", fw_path); - goto error; + goto exit; } buf = kmalloc(DOWNLOAD_BLOCK_SIZE, GFP_KERNEL | GFP_DMA); if (!buf) { pr_err("Can't allocate firmware load buffer.\n"); ret = -ENOMEM; - goto error; + goto firmware_release; } /* Check if the bootloader is ready */ @@ -163,7 +169,7 @@ static int cw1200_load_firmware_cw1200(struct cw1200_common *priv) if (val32 != DOWNLOAD_I_AM_HERE) { pr_err("Bootloader is not ready.\n"); ret = -ETIMEDOUT; - goto error; + goto free_buffer; } /* Calculcate number of download blocks */ @@ -171,7 +177,7 @@ static int cw1200_load_firmware_cw1200(struct cw1200_common *priv) /* Updating the length in Download Ctrl Area */ val32 = firmware->size; /* Explicit cast from size_t to u32 */ - APB_WRITE(DOWNLOAD_IMAGE_SIZE_REG, val32); + APB_WRITE2(DOWNLOAD_IMAGE_SIZE_REG, val32); /* Firmware downloading loop */ for (block = 0; block < num_blocks; block++) { @@ -183,7 +189,7 @@ static int cw1200_load_firmware_cw1200(struct cw1200_common *priv) if (val32 != DOWNLOAD_PENDING) { pr_err("Bootloader reported error %d.\n", val32); ret = -EIO; - goto error; + goto free_buffer; } /* loop until put - get <= 24K */ @@ -198,7 +204,7 @@ static int cw1200_load_firmware_cw1200(struct cw1200_common *priv) if ((put - get) > (DOWNLOAD_FIFO_SIZE - DOWNLOAD_BLOCK_SIZE)) { pr_err("Timeout waiting for FIFO.\n"); ret = -ETIMEDOUT; - goto error; + goto free_buffer; } /* calculate the block size */ @@ -220,12 +226,12 @@ static int cw1200_load_firmware_cw1200(struct cw1200_common *priv) if (ret < 0) { pr_err("Can't write firmware block @ %d!\n", put & (DOWNLOAD_FIFO_SIZE - 1)); - goto error; + goto free_buffer; } /* update the put register */ put += block_size; - APB_WRITE(DOWNLOAD_PUT_REG, put); + APB_WRITE2(DOWNLOAD_PUT_REG, put); } /* End of firmware download loop */ /* Wait for the download completion */ @@ -238,19 +244,21 @@ static int cw1200_load_firmware_cw1200(struct cw1200_common *priv) if (val32 != DOWNLOAD_SUCCESS) { pr_err("Wait for download completion failed: 0x%.8X\n", val32); ret = -ETIMEDOUT; - goto error; + goto free_buffer; } else { pr_info("Firmware download completed.\n"); ret = 0; } -error: +free_buffer: kfree(buf); - if (firmware) - release_firmware(firmware); +firmware_release: + release_firmware(firmware); +exit: return ret; #undef APB_WRITE +#undef APB_WRITE2 #undef APB_READ #undef REG_WRITE #undef REG_READ |