From 5b711870bec4dc9a6d705d41e127e73944fa3650 Mon Sep 17 00:00:00 2001 From: Kangjie Lu Date: Tue, 25 Dec 2018 03:24:41 -0500 Subject: media: usb: gspca: add a missed check for goto_low_power The fix checks if goto_low_power() fails, and if so, issues an error message. Signed-off-by: Kangjie Lu Signed-off-by: Mauro Carvalho Chehab --- drivers/media/usb/gspca/cpia1.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/media/usb/gspca/cpia1.c b/drivers/media/usb/gspca/cpia1.c index 23fbda56fc91..7c817a4a93c4 100644 --- a/drivers/media/usb/gspca/cpia1.c +++ b/drivers/media/usb/gspca/cpia1.c @@ -1434,6 +1434,7 @@ static int sd_config(struct gspca_dev *gspca_dev, { struct sd *sd = (struct sd *) gspca_dev; struct cam *cam; + int ret; sd->mainsFreq = FREQ_DEF == V4L2_CID_POWER_LINE_FREQUENCY_60HZ; reset_camera_params(gspca_dev); @@ -1445,7 +1446,10 @@ static int sd_config(struct gspca_dev *gspca_dev, cam->cam_mode = mode; cam->nmodes = ARRAY_SIZE(mode); - goto_low_power(gspca_dev); + ret = goto_low_power(gspca_dev); + if (ret) + gspca_err(gspca_dev, "Cannot go to low power mode: %d\n", + ret); /* Check the firmware version. */ sd->params.version.firmwareVersion = 0; get_version_information(gspca_dev); -- cgit v1.2.3