diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/usb/serial/io_ti.c | 66 |
1 files changed, 48 insertions, 18 deletions
diff --git a/drivers/usb/serial/io_ti.c b/drivers/usb/serial/io_ti.c index d4cc0f7af400..1691f07548db 100644 --- a/drivers/usb/serial/io_ti.c +++ b/drivers/usb/serial/io_ti.c @@ -413,11 +413,18 @@ static int write_boot_mem(struct edgeport_serial *serial, { int status = 0; int i; - __u8 temp; + u8 *temp; /* Must do a read before write */ if (!serial->TiReadI2C) { - status = read_boot_mem(serial, 0, 1, &temp); + temp = kmalloc(1, GFP_KERNEL); + if (!temp) { + dev_err(&serial->serial->dev->dev, + "%s - out of memory\n", __func__); + return -ENOMEM; + } + status = read_boot_mem(serial, 0, 1, temp); + kfree(temp); if (status) return status; } @@ -935,37 +942,47 @@ static int build_i2c_fw_hdr(__u8 *header, struct device *dev) static int i2c_type_bootmode(struct edgeport_serial *serial) { int status; - __u8 data; + u8 *data; + + data = kmalloc(1, GFP_KERNEL); + if (!data) { + dev_err(&serial->serial->dev->dev, + "%s - out of memory\n", __func__); + return -ENOMEM; + } /* Try to read type 2 */ status = ti_vread_sync(serial->serial->dev, UMPC_MEMORY_READ, - DTK_ADDR_SPACE_I2C_TYPE_II, 0, &data, 0x01); + DTK_ADDR_SPACE_I2C_TYPE_II, 0, data, 0x01); if (status) dbg("%s - read 2 status error = %d", __func__, status); else - dbg("%s - read 2 data = 0x%x", __func__, data); - if ((!status) && (data == UMP5152 || data == UMP3410)) { + dbg("%s - read 2 data = 0x%x", __func__, *data); + if ((!status) && (*data == UMP5152 || *data == UMP3410)) { dbg("%s - ROM_TYPE_II", __func__); serial->TI_I2C_Type = DTK_ADDR_SPACE_I2C_TYPE_II; - return 0; + goto out; } /* Try to read type 3 */ status = ti_vread_sync(serial->serial->dev, UMPC_MEMORY_READ, - DTK_ADDR_SPACE_I2C_TYPE_III, 0, &data, 0x01); + DTK_ADDR_SPACE_I2C_TYPE_III, 0, data, 0x01); if (status) dbg("%s - read 3 status error = %d", __func__, status); else - dbg("%s - read 2 data = 0x%x", __func__, data); - if ((!status) && (data == UMP5152 || data == UMP3410)) { + dbg("%s - read 2 data = 0x%x", __func__, *data); + if ((!status) && (*data == UMP5152 || *data == UMP3410)) { dbg("%s - ROM_TYPE_III", __func__); serial->TI_I2C_Type = DTK_ADDR_SPACE_I2C_TYPE_III; - return 0; + goto out; } dbg("%s - Unknown", __func__); serial->TI_I2C_Type = DTK_ADDR_SPACE_I2C_TYPE_II; - return -ENODEV; + status = -ENODEV; +out: + kfree(data); + return status; } static int bulk_xfer(struct usb_serial *serial, void *buffer, @@ -1113,7 +1130,7 @@ static int download_fw(struct edgeport_serial *serial) I2C_DESC_TYPE_FIRMWARE_BASIC, rom_desc); if (start_address != 0) { struct ti_i2c_firmware_rec *firmware_version; - __u8 record; + u8 *record; dbg("%s - Found Type FIRMWARE (Type 2) record", __func__); @@ -1165,6 +1182,15 @@ static int download_fw(struct edgeport_serial *serial) OperationalMajorVersion, OperationalMinorVersion); + record = kmalloc(1, GFP_KERNEL); + if (!record) { + dev_err(dev, "%s - out of memory.\n", + __func__); + kfree(firmware_version); + kfree(rom_desc); + kfree(ti_manuf_desc); + return -ENOMEM; + } /* In order to update the I2C firmware we must * change the type 2 record to type 0xF2. This * will force the UMP to come up in Boot Mode. @@ -1177,13 +1203,14 @@ static int download_fw(struct edgeport_serial *serial) * firmware will update the record type from * 0xf2 to 0x02. */ - record = I2C_DESC_TYPE_FIRMWARE_BLANK; + *record = I2C_DESC_TYPE_FIRMWARE_BLANK; /* Change the I2C Firmware record type to 0xf2 to trigger an update */ status = write_rom(serial, start_address, - sizeof(record), &record); + sizeof(*record), record); if (status) { + kfree(record); kfree(firmware_version); kfree(rom_desc); kfree(ti_manuf_desc); @@ -1196,19 +1223,21 @@ static int download_fw(struct edgeport_serial *serial) */ status = read_rom(serial, start_address, - sizeof(record), - &record); + sizeof(*record), + record); if (status) { + kfree(record); kfree(firmware_version); kfree(rom_desc); kfree(ti_manuf_desc); return status; } - if (record != I2C_DESC_TYPE_FIRMWARE_BLANK) { + if (*record != I2C_DESC_TYPE_FIRMWARE_BLANK) { dev_err(dev, "%s - error resetting device\n", __func__); + kfree(record); kfree(firmware_version); kfree(rom_desc); kfree(ti_manuf_desc); @@ -1226,6 +1255,7 @@ static int download_fw(struct edgeport_serial *serial) __func__, status); /* return an error on purpose. */ + kfree(record); kfree(firmware_version); kfree(rom_desc); kfree(ti_manuf_desc); |