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| author |   Sean Paul <seanpaul@chromium.org> | 2017-05-18 09:24:30 -0400 |
|---|---|---|
| committer | Sean Paul <seanpaul@chromium.org> | 2017-05-18 09:24:30 -0400 |
| commit | 6b7781b42dc9bc9bcd1523b6c24b876cdda0bef3 (patch) | |
| tree | ee55c67e4ea30b9eb44f301ba0bde2e631a26162 /drivers/usb/storage/usb.c | |
| parent | drm/sti:fix spelling mistake: "compoment" -> "component" (diff) | |
| parent | Merge tag 'drm-misc-next-2017-05-16' of git://anongit.freedesktop.org/git/drm-misc into drm-next (diff) | |
| download | linux-dev-6b7781b42dc9bc9bcd1523b6c24b876cdda0bef3.tar.xz linux-dev-6b7781b42dc9bc9bcd1523b6c24b876cdda0bef3.zip | |
Merge remote-tracking branch 'airlied/drm-next' into drm-misc-next
Picking up drm-next @ 4.12-rc1 in order to apply Michal Hocko's vmalloc patch set
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Diffstat (limited to 'drivers/usb/storage/usb.c')
| -rw-r--r-- | drivers/usb/storage/usb.c | 40 |
1 files changed, 13 insertions, 27 deletions
diff --git a/drivers/usb/storage/usb.c b/drivers/usb/storage/usb.c index 615bea08ec0a..06615934fed1 100644 --- a/drivers/usb/storage/usb.c +++ b/drivers/usb/storage/usb.c @@ -737,13 +737,11 @@ static void get_protocol(struct us_data *us) /* Get the pipe settings */ static int get_pipes(struct us_data *us) { - struct usb_host_interface *altsetting = - us->pusb_intf->cur_altsetting; - int i; - struct usb_endpoint_descriptor *ep; - struct usb_endpoint_descriptor *ep_in = NULL; - struct usb_endpoint_descriptor *ep_out = NULL; - struct usb_endpoint_descriptor *ep_int = NULL; + struct usb_host_interface *alt = us->pusb_intf->cur_altsetting; + struct usb_endpoint_descriptor *ep_in; + struct usb_endpoint_descriptor *ep_out; + struct usb_endpoint_descriptor *ep_int; + int res; /* * Find the first endpoint of each type we need. @@ -751,28 +749,16 @@ static int get_pipes(struct us_data *us) * An optional interrupt-in is OK (necessary for CBI protocol). * We will ignore any others. */ - for (i = 0; i < altsetting->desc.bNumEndpoints; i++) { - ep = &altsetting->endpoint[i].desc; - - if (usb_endpoint_xfer_bulk(ep)) { - if (usb_endpoint_dir_in(ep)) { - if (!ep_in) - ep_in = ep; - } else { - if (!ep_out) - ep_out = ep; - } - } - - else if (usb_endpoint_is_int_in(ep)) { - if (!ep_int) - ep_int = ep; - } + res = usb_find_common_endpoints(alt, &ep_in, &ep_out, NULL, NULL); + if (res) { + usb_stor_dbg(us, "bulk endpoints not found\n"); + return res; } - if (!ep_in || !ep_out || (us->protocol == USB_PR_CBI && !ep_int)) { - usb_stor_dbg(us, "Endpoint sanity check failed! Rejecting dev.\n"); - return -EIO; + res = usb_find_int_in_endpoint(alt, &ep_int); + if (res && us->protocol == USB_PR_CBI) { + usb_stor_dbg(us, "interrupt endpoint not found\n"); + return res; } /* Calculate and store the pipe values */ |