Merge branch 'linus' into cpus4096

Conflicts:
	kernel/trace/ring_buffer.c

1 files changed, 3 insertions, 0 deletions

diff --git a/drivers/media/video/gspca/conex.c b/drivers/media/video/gspca/conex.c
index a9d51ba7c57c..de28354ea5ba 100644
--- a/drivers/media/video/gspca/conex.c
+++ b/drivers/media/video/gspca/conex.c
@@ -846,10 +846,13 @@ static int sd_start(struct gspca_dev *gspca_dev)
         return 0;
 }
 
+/* called on streamoff with alt 0 and on disconnect */
 static void sd_stop0(struct gspca_dev *gspca_dev)
 {
         int retry = 50;
 
+        if (!gspca_dev->present)
+                return;
         reg_w_val(gspca_dev, 0x0000, 0x00);
         reg_r(gspca_dev, 0x0002, 1);
         reg_w_val(gspca_dev, 0x0053, 0x00);