X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=drivers%2Fisdn%2Fi4l%2Fisdn_common.c;h=4cd1a5a0b7103a7fe70b727080882ede187daf19;hb=987b0145d94eecf292d8b301228356f44611ab7c;hp=22759c01746af5d71a1c016d79716d4ec3406c91;hpb=f7ed79d23a47594e7834d66a8f14449796d4f3e6;p=linux-2.6.git

diff --git a/drivers/isdn/i4l/isdn_common.c b/drivers/isdn/i4l/isdn_common.c
index 22759c017..4cd1a5a0b 100644
--- a/drivers/isdn/i4l/isdn_common.c
+++ b/drivers/isdn/i4l/isdn_common.c
@@ -1125,9 +1125,12 @@ isdn_read(struct file *file, char __user *buf, size_t count, loff_t * off)
 		if (dev->drv[drvidx]->interface->readstat) {
 			if (count > dev->drv[drvidx]->stavail)
 				count = dev->drv[drvidx]->stavail;
-			len = dev->drv[drvidx]->interface->
-				readstat(buf, count, drvidx,
-					 isdn_minor2chan(minor));
+			len = dev->drv[drvidx]->interface->readstat(buf, count,
+						drvidx, isdn_minor2chan(minor));
+			if (len < 0) {
+				retval = len;
+				goto out;
+			}
 		} else {
 			len = 0;
 		}