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| author | Simon Arlott <simon@fire.lp0.eu> | 2010-08-30 22:50:20 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2010-10-22 10:21:27 -0700 |
| commit | f7dd64916bb6cfae8c96eaa3c754c30b5046586f (patch) | |
| tree | 6842f3fb50c13b2707ecb8f2b271b6c09f67e2d8 /drivers | |
| parent | 0cf7a6338808d702c256778188516a16805e6145 (diff) | |
| download | linux-f7dd64916bb6cfae8c96eaa3c754c30b5046586f.tar.bz2 | |
USB: output an error message when the pipe type doesn't match the endpoint type
Commit f661c6f8c67bd55e93348f160d590ff9edf08904 adds a check of the pipe type if
CONFIG_USB_DEBUG is enabled, but it doesn't output anything if this scenario
occurs.
Signed-off-by: Simon Arlott <simon@fire.lp0.eu>
Cc: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/usb/core/urb.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/usb/core/urb.c b/drivers/usb/core/urb.c index 419e6b34e2fe..c14fc082864f 100644 --- a/drivers/usb/core/urb.c +++ b/drivers/usb/core/urb.c @@ -401,8 +401,11 @@ int usb_submit_urb(struct urb *urb, gfp_t mem_flags) }; /* Check that the pipe's type matches the endpoint's type */ - if (usb_pipetype(urb->pipe) != pipetypes[xfertype]) + if (usb_pipetype(urb->pipe) != pipetypes[xfertype]) { + dev_err(&dev->dev, "BOGUS urb xfer, pipe %x != type %x\n", + usb_pipetype(urb->pipe), pipetypes[xfertype]); return -EPIPE; /* The most suitable error code :-) */ + } /* enforce simple/standard policy */ allowed = (URB_NO_TRANSFER_DMA_MAP | URB_NO_INTERRUPT | URB_DIR_MASK | |