V4L/DVB (13418): gspca - pac7311: Stop sending URBs on first error.

Signed-off-by: Márton Németh <nm127@freemail.hu>
Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

1 files changed, 21 insertions, 10 deletions

diff --git a/drivers/media/video/gspca/pac7311.c b/drivers/media/video/gspca/pac7311.c
index c3e1f80351ad..1a27da00ccc1 100644
--- a/drivers/media/video/gspca/pac7311.c
+++ b/drivers/media/video/gspca/pac7311.c
@@ -569,16 +569,27 @@ static int sd_start(struct gspca_dev *gspca_dev)
 
 static void sd_stopN(struct gspca_dev *gspca_dev)
 {
-        reg_w(gspca_dev, 0xff, 0x04);
-        reg_w(gspca_dev, 0x27, 0x80);
-        reg_w(gspca_dev, 0x28, 0xca);
-        reg_w(gspca_dev, 0x29, 0x53);
-        reg_w(gspca_dev, 0x2a, 0x0e);
-        reg_w(gspca_dev, 0xff, 0x01);
-        reg_w(gspca_dev, 0x3e, 0x20);
-        reg_w(gspca_dev, 0x78, 0x44); /* Bit_0=start stream, Bit_6=LED */
-        reg_w(gspca_dev, 0x78, 0x44); /* Bit_0=start stream, Bit_6=LED */
-        reg_w(gspca_dev, 0x78, 0x44); /* Bit_0=start stream, Bit_6=LED */
+        int ret;
+
+        ret = reg_w(gspca_dev, 0xff, 0x04);
+        if (0 <= ret)
+                ret = reg_w(gspca_dev, 0x27, 0x80);
+        if (0 <= ret)
+                ret = reg_w(gspca_dev, 0x28, 0xca);
+        if (0 <= ret)
+                ret = reg_w(gspca_dev, 0x29, 0x53);
+        if (0 <= ret)
+                ret = reg_w(gspca_dev, 0x2a, 0x0e);
+        if (0 <= ret)
+                ret = reg_w(gspca_dev, 0xff, 0x01);
+        if (0 <= ret)
+                ret = reg_w(gspca_dev, 0x3e, 0x20);
+        if (0 <= ret)
+                ret = reg_w(gspca_dev, 0x78, 0x44); /* Bit_0=start stream, Bit_6=LED */
+        if (0 <= ret)
+                ret = reg_w(gspca_dev, 0x78, 0x44); /* Bit_0=start stream, Bit_6=LED */
+        if (0 <= ret)
+                ret = reg_w(gspca_dev, 0x78, 0x44); /* Bit_0=start stream, Bit_6=LED */
 }
 
 /* called on streamoff with alt 0 and on disconnect for 7311 */