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USB: g_file_storage: fix bug in DMA buffer handling 

This patch (as963) fixes a recently-introduced bug.  The gadget
conversion removing DMA-mapped buffer allocation did not remove quite
enough code from the g_file_storage driver; DMA pointers were being
set to 0.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
hifive-unleashed-5.1
Alan Stern 2007-08-17 10:58:16 -04:00 committed by Greg Kroah-Hartman
parent 013d27f265
commit d1a94f080f
1 changed files with 0 additions and 3 deletions
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3
drivers/usb/gadget/file_storage.c
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@ -599,7 +599,6 @@ enum fsg_buffer_state {
struct fsg_buffhd {
void *buf;
dma_addr_t dma;
enum fsg_buffer_state state;
struct fsg_buffhd *next;
@ -2612,7 +2611,6 @@ static int send_status(struct fsg_dev *fsg)
fsg->intr_buffhd = bh; // Point to the right buffhd
fsg->intreq->buf = bh->inreq->buf;
fsg->intreq->dma = bh->inreq->dma;
fsg->intreq->context = bh;
start_transfer(fsg, fsg->intr_in, fsg->intreq,
&fsg->intreq_busy, &bh->state);
@ -3201,7 +3199,6 @@ reset:
if ((rc = alloc_request(fsg, fsg->bulk_out, &bh->outreq)) != 0)
goto reset;
bh->inreq->buf = bh->outreq->buf = bh->buf;
bh->inreq->dma = bh->outreq->dma = bh->dma;
bh->inreq->context = bh->outreq->context = bh;
bh->inreq->complete = bulk_in_complete;
bh->outreq->complete = bulk_out_complete;