From 048e7a758ab94d68819e5f7126aac9772b4cc61a Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Jean-Fran=C3=A7ois=20Moine?= Date: Thu, 13 Jan 2011 05:58:04 -0300 Subject: [PATCH] --- yaml --- r: 232212 b: refs/heads/master c: 14b67c2969ebf50bd5534b2a0c441f8569a9361e h: refs/heads/master v: v3 --- [refs] | 2 +- trunk/drivers/media/video/gspca/ov534.c | 21 ++++++++++++++++----- 2 files changed, 17 insertions(+), 6 deletions(-) diff --git a/[refs] b/[refs] index 8a49c674d57b..029c61d6cf65 100644 --- a/[refs] +++ b/[refs] @@ -1,2 +1,2 @@ --- -refs/heads/master: ddffa49e257e2b28e23f1e2729c0560bcad89937 +refs/heads/master: 14b67c2969ebf50bd5534b2a0c441f8569a9361e diff --git a/trunk/drivers/media/video/gspca/ov534.c b/trunk/drivers/media/video/gspca/ov534.c index a837f2942a8c..04da22802736 100644 --- a/trunk/drivers/media/video/gspca/ov534.c +++ b/trunk/drivers/media/video/gspca/ov534.c @@ -479,6 +479,9 @@ static void ov534_reg_write(struct gspca_dev *gspca_dev, u16 reg, u8 val) struct usb_device *udev = gspca_dev->dev; int ret; + if (gspca_dev->usb_err < 0) + return; + PDEBUG(D_USBO, "SET 01 0000 %04x %02x", reg, val); gspca_dev->usb_buf[0] = val; ret = usb_control_msg(udev, @@ -486,8 +489,10 @@ static void ov534_reg_write(struct gspca_dev *gspca_dev, u16 reg, u8 val) 0x01, USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE, 0x00, reg, gspca_dev->usb_buf, 1, CTRL_TIMEOUT); - if (ret < 0) + if (ret < 0) { err("write failed %d", ret); + gspca_dev->usb_err = ret; + } } static u8 ov534_reg_read(struct gspca_dev *gspca_dev, u16 reg) @@ -495,14 +500,18 @@ static u8 ov534_reg_read(struct gspca_dev *gspca_dev, u16 reg) struct usb_device *udev = gspca_dev->dev; int ret; + if (gspca_dev->usb_err < 0) + return 0; ret = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), 0x01, USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE, 0x00, reg, gspca_dev->usb_buf, 1, CTRL_TIMEOUT); PDEBUG(D_USBI, "GET 01 0000 %04x %02x", reg, gspca_dev->usb_buf[0]); - if (ret < 0) + if (ret < 0) { err("read failed %d", ret); + gspca_dev->usb_err = ret; + } return gspca_dev->usb_buf[0]; } @@ -563,8 +572,10 @@ static void sccb_reg_write(struct gspca_dev *gspca_dev, u8 reg, u8 val) ov534_reg_write(gspca_dev, OV534_REG_WRITE, val); ov534_reg_write(gspca_dev, OV534_REG_OPERATION, OV534_OP_WRITE_3); - if (!sccb_check_status(gspca_dev)) + if (!sccb_check_status(gspca_dev)) { err("sccb_reg_write failed"); + gspca_dev->usb_err = -EIO; + } } static u8 sccb_reg_read(struct gspca_dev *gspca_dev, u16 reg) @@ -885,7 +896,7 @@ static int sd_init(struct gspca_dev *gspca_dev) ov534_set_led(gspca_dev, 0); set_frame_rate(gspca_dev); - return 0; + return gspca_dev->usb_err; } static int sd_start(struct gspca_dev *gspca_dev) @@ -920,7 +931,7 @@ static int sd_start(struct gspca_dev *gspca_dev) ov534_set_led(gspca_dev, 1); ov534_reg_write(gspca_dev, 0xe0, 0x00); - return 0; + return gspca_dev->usb_err; } static void sd_stopN(struct gspca_dev *gspca_dev)