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authorLinus Torvalds <torvalds@linux-foundation.org>2010-10-22 20:30:48 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2010-10-22 20:30:48 -0700
commit5cc103506289de7ee0a0b526ae0381541990cad4 (patch)
treeae8a4958e70c6d1295030b40e333dcc007b3c074 /drivers/scsi/sd.c
parent73ecf3a6e3f0206bf56a0fefe3b3eda042fb7034 (diff)
parent92ca0dc5ee022e4c0e488177e1d8865a0778c6c2 (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: (141 commits) USB: mct_u232: fix broken close USB: gadget: amd5536udc.c: fix error path USB: imx21-hcd - fix off by one resource size calculation usb: gadget: fix Kconfig warning usb: r8a66597-udc: Add processing when USB was removed. mxc_udc: add workaround for ENGcm09152 for i.MX35 USB: ftdi_sio: add device ids for ScienceScope USB: musb: AM35x: Workaround for fifo read issue USB: musb: add musb support for AM35x USB: AM35x: Add musb support usb: Fix linker errors with CONFIG_PM=n USB: ohci-sh - use resource_size instead of defining its own resource_len macro USB: isp1362-hcd - use resource_size instead of defining its own resource_len macro USB: isp116x-hcd - use resource_size instead of defining its own resource_len macro USB: xhci: Fix compile error when CONFIG_PM=n USB: accept some invalid ep0-maxpacket values USB: xHCI: PCI power management implementation USB: xHCI: bus power management implementation USB: xHCI: port remote wakeup implementation USB: xHCI: port power management implementation ... Manually fix up (non-data) conflict: the SCSI merge gad renamed the 'hw_sector_size' member to 'physical_block_size', and the USB tree brought a new use of it.
Diffstat (limited to 'drivers/scsi/sd.c')
-rw-r--r--drivers/scsi/sd.c12
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c
index 20295774bf7..57d1e3e1bd4 100644
--- a/drivers/scsi/sd.c
+++ b/drivers/scsi/sd.c
@@ -1498,6 +1498,9 @@ static int read_capacity_16(struct scsi_disk *sdkp, struct scsi_device *sdp,
unsigned long long lba;
unsigned sector_size;
+ if (sdp->no_read_capacity_16)
+ return -EINVAL;
+
do {
memset(cmd, 0, 16);
cmd[0] = SERVICE_ACTION_IN;
@@ -1626,6 +1629,15 @@ static int read_capacity_10(struct scsi_disk *sdkp, struct scsi_device *sdp,
sector_size = get_unaligned_be32(&buffer[4]);
lba = get_unaligned_be32(&buffer[0]);
+ if (sdp->no_read_capacity_16 && (lba == 0xffffffff)) {
+ /* Some buggy (usb cardreader) devices return an lba of
+ 0xffffffff when the want to report a size of 0 (with
+ which they really mean no media is present) */
+ sdkp->capacity = 0;
+ sdkp->physical_block_size = sector_size;
+ return sector_size;
+ }
+
if ((sizeof(sdkp->capacity) == 4) && (lba == 0xffffffff)) {
sd_printk(KERN_ERR, sdkp, "Too big for this kernel. Use a "
"kernel compiled with support for large block "