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authorAlex Shi <alex.shi@linaro.org>2016-04-13 12:02:21 +0800
committerAlex Shi <alex.shi@linaro.org>2016-04-13 12:02:21 +0800
commit08562bfcb85748c69e5824fc6d1d77d5725787e4 (patch)
tree905e39ccad43e244dbb09d4eccce1c91e0facce0 /sound/usb/clock.c
parent9fe9bdd75b2ad9ed25152fce02f41fe63c542e8a (diff)
parentad592b70ae97800d4f5bf535d45a680649e2789e (diff)
Merge branch 'linux-linaro-lsk-v4.4' into linux-linaro-lsk-v4.4-android
Diffstat (limited to 'sound/usb/clock.c')
-rw-r--r--sound/usb/clock.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/sound/usb/clock.c b/sound/usb/clock.c
index 2ed260b10f6d..7ccbcaf6a147 100644
--- a/sound/usb/clock.c
+++ b/sound/usb/clock.c
@@ -285,6 +285,8 @@ static int set_sample_rate_v1(struct snd_usb_audio *chip, int iface,
unsigned char data[3];
int err, crate;
+ if (get_iface_desc(alts)->bNumEndpoints < 1)
+ return -EINVAL;
ep = get_endpoint(alts, 0)->bEndpointAddress;
/* if endpoint doesn't have sampling rate control, bail out */