diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2008-08-13 20:50:10 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-08-13 20:50:10 -0700 |
| commit | b635acec48bcaa9183fcbf4e3955616b0d4119b5 (patch) | |
| tree | 55bf04579019674736355927743bbb4a8913d5d5 /drivers/usb/storage/transport.c | |
| parent | 9921b256bb7402143a5bf0b722582562b6485eb8 (diff) | |
| parent | ca6d1b1333bc2e61e37982de1f28d8604c232414 (diff) | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6: (47 commits)
usb: musb: pass configuration specifics via pdata
usb: musb: fix hanging when rmmod gadget driver
USB: Add MUSB and TUSB support
USB: serial: remove CONFIG_USB_DEBUG from sierra and option drivers
USB: Add vendor/product id of ZTE MF628 to option
USB: quirk PLL power down mode
USB: omap_udc: fix compilation with debug enabled
usb: cdc-acm: drain writes on close
usb: cdc-acm: stop dropping tx buffers
usb: cdc-acm: bugfix release()
usb gadget: issue notifications from ACM function
usb gadget: remove needless struct members
USB: sh: r8a66597-hcd: fix disconnect regression
USB: isp1301: fix compilation
USB: fix compiler warning fix
usb-storage: unusual_devs entry for Nokia 5300
USB: cdc-acm.c: Fix compile warnings
USB: BandRich BandLuxe C150/C250 HSPA Data Card Driver
USB: ftdi_sio: add support for PHI Fisco data cable (FT232BM based, VID/PID 0403:e40b)
usb: isp1760: don't be noisy about short packets.
...
Diffstat (limited to 'drivers/usb/storage/transport.c')
| -rw-r--r-- | drivers/usb/storage/transport.c | 17 |
1 files changed, 15 insertions, 2 deletions
diff --git a/drivers/usb/storage/transport.c b/drivers/usb/storage/transport.c index fcbbfdb7b2b0..3523a0bfa0ff 100644 --- a/drivers/usb/storage/transport.c +++ b/drivers/usb/storage/transport.c @@ -1032,8 +1032,21 @@ int usb_stor_Bulk_transport(struct scsi_cmnd *srb, struct us_data *us) /* try to compute the actual residue, based on how much data * was really transferred and what the device tells us */ - if (residue) { - if (!(us->fflags & US_FL_IGNORE_RESIDUE)) { + if (residue && !(us->fflags & US_FL_IGNORE_RESIDUE)) { + + /* Heuristically detect devices that generate bogus residues + * by seeing what happens with INQUIRY and READ CAPACITY + * commands. + */ + if (bcs->Status == US_BULK_STAT_OK && + scsi_get_resid(srb) == 0 && + ((srb->cmnd[0] == INQUIRY && + transfer_length == 36) || + (srb->cmnd[0] == READ_CAPACITY && + transfer_length == 8))) { + us->fflags |= US_FL_IGNORE_RESIDUE; + + } else { residue = min(residue, transfer_length); scsi_set_resid(srb, max(scsi_get_resid(srb), (int) residue)); |