diff options
Diffstat (limited to 'drivers/usb/storage/isd200.c')
| -rw-r--r-- | drivers/usb/storage/isd200.c | 29 |
1 files changed, 21 insertions, 8 deletions
diff --git a/drivers/usb/storage/isd200.c b/drivers/usb/storage/isd200.c index 4e0eef1440b7..a1669c35bad5 100644 --- a/drivers/usb/storage/isd200.c +++ b/drivers/usb/storage/isd200.c @@ -53,7 +53,7 @@ MODULE_DESCRIPTION("Driver for In-System Design, Inc. ISD200 ASIC"); MODULE_AUTHOR("Björn Stenberg <bjorn@haxx.se>"); MODULE_LICENSE("GPL"); -MODULE_IMPORT_NS(USB_STORAGE); +MODULE_IMPORT_NS("USB_STORAGE"); static int isd200_Initialization(struct us_data *us); @@ -67,7 +67,7 @@ static int isd200_Initialization(struct us_data *us); { USB_DEVICE_VER(id_vendor, id_product, bcdDeviceMin, bcdDeviceMax), \ .driver_info = (flags) } -static struct usb_device_id isd200_usb_ids[] = { +static const struct usb_device_id isd200_usb_ids[] = { # include "unusual_isd200.h" { } /* Terminating entry */ }; @@ -89,7 +89,7 @@ MODULE_DEVICE_TABLE(usb, isd200_usb_ids); .initFunction = init_function, \ } -static struct us_unusual_dev isd200_unusual_dev_list[] = { +static const struct us_unusual_dev isd200_unusual_dev_list[] = { # include "unusual_isd200.h" { } /* Terminating entry */ }; @@ -1105,7 +1105,7 @@ static void isd200_dump_driveid(struct us_data *us, u16 *id) static int isd200_get_inquiry_data( struct us_data *us ) { struct isd200_info *info = (struct isd200_info *)us->extra; - int retStatus = ISD200_GOOD; + int retStatus; u16 *id = info->id; usb_stor_dbg(us, "Entering isd200_get_inquiry_data\n"); @@ -1137,6 +1137,13 @@ static int isd200_get_inquiry_data( struct us_data *us ) isd200_fix_driveid(id); isd200_dump_driveid(us, id); + /* Prevent division by 0 in isd200_scsi_to_ata() */ + if (id[ATA_ID_HEADS] == 0 || id[ATA_ID_SECTORS] == 0) { + usb_stor_dbg(us, " Invalid ATA Identify data\n"); + retStatus = ISD200_ERROR; + goto Done; + } + memset(&info->InquiryData, 0, sizeof(info->InquiryData)); /* Standard IDE interface only supports disks */ @@ -1202,6 +1209,7 @@ static int isd200_get_inquiry_data( struct us_data *us ) } } + Done: usb_stor_dbg(us, "Leaving isd200_get_inquiry_data %08X\n", retStatus); return(retStatus); @@ -1481,22 +1489,27 @@ static int isd200_init_info(struct us_data *us) static int isd200_Initialization(struct us_data *us) { + int rc = 0; + usb_stor_dbg(us, "ISD200 Initialization...\n"); /* Initialize ISD200 info struct */ - if (isd200_init_info(us) == ISD200_ERROR) { + if (isd200_init_info(us) < 0) { usb_stor_dbg(us, "ERROR Initializing ISD200 Info struct\n"); + rc = -ENOMEM; } else { /* Get device specific data */ - if (isd200_get_inquiry_data(us) != ISD200_GOOD) + if (isd200_get_inquiry_data(us) != ISD200_GOOD) { usb_stor_dbg(us, "ISD200 Initialization Failure\n"); - else + rc = -EINVAL; + } else { usb_stor_dbg(us, "ISD200 Initialization complete\n"); + } } - return 0; + return rc; } |