diff options
| author | Michael Trimarchi <michael@amarulasolutions.com> | 2015-05-18 18:28:58 +0300 |
|---|---|---|
| committer | Felipe Balbi <balbi@ti.com> | 2015-05-26 18:15:09 +0300 |
| commit | ca4de53c522f261e84efb659a07435bd1a5a8828 (patch) | |
| tree | 29342f7d5999daf59da2c43ec660abc5c87b5b87 /drivers/usb | |
| parent | 49a79d8b0a5f8239b8424a3eb730006faada0ad8 (diff) | |
| download | linux-ca4de53c522f261e84efb659a07435bd1a5a8828.tar.xz | |
usb: gadget: f_uac1: check return code from config_ep_by_speed
Not checking config_ep_by_speed could lead to a kernel
NULL pointer dereference error in usb_ep_enable
Cc: Felipe Balbi <balbi@ti.com>
Signed-off-by: Michael Trimarchi <michael@amarulasolutions.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Diffstat (limited to 'drivers/usb')
| -rw-r--r-- | drivers/usb/gadget/function/f_uac1.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/usb/gadget/function/f_uac1.c b/drivers/usb/gadget/function/f_uac1.c index 9719abfb6145..7856b3394494 100644 --- a/drivers/usb/gadget/function/f_uac1.c +++ b/drivers/usb/gadget/function/f_uac1.c @@ -588,7 +588,10 @@ static int f_audio_set_alt(struct usb_function *f, unsigned intf, unsigned alt) if (intf == 1) { if (alt == 1) { - config_ep_by_speed(cdev->gadget, f, out_ep); + err = config_ep_by_speed(cdev->gadget, f, out_ep); + if (err) + return err; + usb_ep_enable(out_ep); out_ep->driver_data = audio; audio->copy_buf = f_audio_buffer_alloc(audio_buf_size); |