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usb: gadget: f_fs: fix setup request handling

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This patch fixes __ffs_ep0_queue_wait() function, which now returns number of
bytes transferred in USB request or error code in case of failure. This is
needed by ffs_ep0_read() function, when read data is copied to userspace.

It also cleans up code by removing usused variable ep0req_status.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
Acked-by: Michal Nazarewicz <mina86@mina86.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
This commit is contained in:
Robert Baldyga 2014-02-10 10:42:42 +01:00 committed by Felipe Balbi
parent a7ecf0544f
commit 0a7b1f8a70
2 changed files with 1 additions and 2 deletions
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2
drivers/usb/gadget/f_fs.c
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@ -228,7 +228,7 @@ static int __ffs_ep0_queue_wait(struct ffs_data *ffs, char *data, size_t len)
}
ffs->setup_state = FFS_NO_SETUP;
return ffs->ep0req_status;
return req->status ? req->status : req->actual;
}
static int __ffs_ep0_stall(struct ffs_data *ffs)

1
drivers/usb/gadget/u_fs.h
View File

@ -154,7 +154,6 @@ struct ffs_data {
*/
struct usb_request *ep0req; /* P: mutex */
struct completion ep0req_completion; /* P: mutex */
int ep0req_status; /* P: mutex */
/* reference counter */
atomic_t ref;