diff options
Diffstat (limited to 'drivers/usb/storage')
| -rw-r--r-- | drivers/usb/storage/transport.c | 7 | ||||
| -rw-r--r-- | drivers/usb/storage/usb.c | 1 |
2 files changed, 6 insertions, 2 deletions
diff --git a/drivers/usb/storage/transport.c b/drivers/usb/storage/transport.c index ffd086733421..1a59f335b063 100644 --- a/drivers/usb/storage/transport.c +++ b/drivers/usb/storage/transport.c @@ -954,10 +954,15 @@ int usb_stor_CB_transport(struct scsi_cmnd *srb, struct us_data *us) /* COMMAND STAGE */ /* let's send the command via the control pipe */ + /* + * Command is sometime (f.e. after scsi_eh_prep_cmnd) on the stack. + * Stack may be vmallocated. So no DMA for us. Make a copy. + */ + memcpy(us->iobuf, srb->cmnd, srb->cmd_len); result = usb_stor_ctrl_transfer(us, us->send_ctrl_pipe, US_CBI_ADSC, USB_TYPE_CLASS | USB_RECIP_INTERFACE, 0, - us->ifnum, srb->cmnd, srb->cmd_len); + us->ifnum, us->iobuf, srb->cmd_len); /* check the return code for the command */ usb_stor_dbg(us, "Call to usb_stor_ctrl_transfer() returned %d\n", diff --git a/drivers/usb/storage/usb.c b/drivers/usb/storage/usb.c index 2cba13a532cd..615bea08ec0a 100644 --- a/drivers/usb/storage/usb.c +++ b/drivers/usb/storage/usb.c @@ -52,7 +52,6 @@ #include <linux/sched.h> #include <linux/errno.h> -#include <linux/freezer.h> #include <linux/module.h> #include <linux/slab.h> #include <linux/kthread.h> |
