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-rw-r--r--drivers/isdn/capi/capidrv.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/isdn/capi/capidrv.c b/drivers/isdn/capi/capidrv.c
index d10c8b82e6aa..b6f9476c0501 100644
--- a/drivers/isdn/capi/capidrv.c
+++ b/drivers/isdn/capi/capidrv.c
@@ -1907,7 +1907,8 @@ static int if_readstat(u8 __user *buf, int len, int id, int channel)
1907 } 1907 }
1908 1908
1909 for (p=buf, count=0; count < len; p++, count++) { 1909 for (p=buf, count=0; count < len; p++, count++) {
1910 put_user(*card->q931_read++, p); 1910 if (put_user(*card->q931_read++, p))
1911 return -EFAULT;
1911 if (card->q931_read > card->q931_end) 1912 if (card->q931_read > card->q931_end)
1912 card->q931_read = card->q931_buf; 1913 card->q931_read = card->q931_buf;
1913 } 1914 }