From: Erik Andr?n Date: Sat, 27 Dec 2008 15:28:00 +0000 (-0300) Subject: V4L/DVB (11405): gspca - m5602: Simplify error handling X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=051781b3a8ea31f1834fddb916607a3088a28f71;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git V4L/DVB (11405): gspca - m5602: Simplify error handling Simplfy error handling by replacing goto statements with return equivalents. Signed-off-by: Erik Andr?n Signed-off-by: Mauro Carvalho Chehab --- diff --git a/drivers/media/video/gspca/m5602/m5602_core.c b/drivers/media/video/gspca/m5602/m5602_core.c index b35e4838a6e5..9f833b4ec525 100644 --- a/drivers/media/video/gspca/m5602/m5602_core.c +++ b/drivers/media/video/gspca/m5602/m5602_core.c @@ -92,29 +92,29 @@ int m5602_read_sensor(struct sd *sd, const u8 address, err = m5602_read_bridge(sd, M5602_XB_I2C_STATUS, i2c_data); } while ((*i2c_data & I2C_BUSY) && !err); if (err < 0) - goto out; + return err; err = m5602_write_bridge(sd, M5602_XB_I2C_DEV_ADDR, sd->sensor->i2c_slave_id); if (err < 0) - goto out; + return err; err = m5602_write_bridge(sd, M5602_XB_I2C_REG_ADDR, address); if (err < 0) - goto out; + return err; if (sd->sensor->i2c_regW == 1) { err = m5602_write_bridge(sd, M5602_XB_I2C_CTRL, len); if (err < 0) - goto out; + return err; err = m5602_write_bridge(sd, M5602_XB_I2C_CTRL, 0x08); if (err < 0) - goto out; + return err; } else { err = m5602_write_bridge(sd, M5602_XB_I2C_CTRL, 0x18 + len); if (err < 0) - goto out; + return err; } for (i = 0; (i < len) && !err; i++) { @@ -123,7 +123,6 @@ int m5602_read_sensor(struct sd *sd, const u8 address, PDEBUG(D_CONF, "Reading sensor register " "0x%x containing 0x%x ", address, *i2c_data); } -out: return err; } diff --git a/drivers/media/video/gspca/m5602/m5602_mt9m111.c b/drivers/media/video/gspca/m5602/m5602_mt9m111.c index c0e71c331454..f3e9d8f0efe9 100644 --- a/drivers/media/video/gspca/m5602/m5602_mt9m111.c +++ b/drivers/media/video/gspca/m5602/m5602_mt9m111.c @@ -125,16 +125,15 @@ int mt9m111_set_vflip(struct gspca_dev *gspca_dev, __s32 val) /* Set the correct page map */ err = m5602_write_sensor(sd, MT9M111_PAGE_MAP, data, 2); if (err < 0) - goto out; + return err; err = m5602_read_sensor(sd, MT9M111_SC_R_MODE_CONTEXT_B, data, 2); if (err < 0) - goto out; + return err; data[0] = (data[0] & 0xfe) | val; err = m5602_write_sensor(sd, MT9M111_SC_R_MODE_CONTEXT_B, data, 2); -out: return err; } @@ -163,16 +162,15 @@ int mt9m111_set_hflip(struct gspca_dev *gspca_dev, __s32 val) /* Set the correct page map */ err = m5602_write_sensor(sd, MT9M111_PAGE_MAP, data, 2); if (err < 0) - goto out; + return err; err = m5602_read_sensor(sd, MT9M111_SC_R_MODE_CONTEXT_B, data, 2); if (err < 0) - goto out; + return err; data[0] = (data[0] & 0xfd) | ((val << 1) & 0x02); err = m5602_write_sensor(sd, MT9M111_SC_R_MODE_CONTEXT_B, data, 2); -out: return err; } @@ -204,7 +202,7 @@ int mt9m111_set_gain(struct gspca_dev *gspca_dev, __s32 val) /* Set the correct page map */ err = m5602_write_sensor(sd, MT9M111_PAGE_MAP, data, 2); if (err < 0) - goto out; + return err; if (val >= INITIAL_MAX_GAIN * 2 * 2 * 2) return -EINVAL; @@ -229,7 +227,7 @@ int mt9m111_set_gain(struct gspca_dev *gspca_dev, __s32 val) err = m5602_write_sensor(sd, MT9M111_SC_GLOBAL_GAIN, data, 2); -out: + return err; } diff --git a/drivers/media/video/gspca/m5602/m5602_ov9650.c b/drivers/media/video/gspca/m5602/m5602_ov9650.c index c908a8d6970a..81e5d1d3bdbc 100644 --- a/drivers/media/video/gspca/m5602/m5602_ov9650.c +++ b/drivers/media/video/gspca/m5602/m5602_ov9650.c @@ -222,21 +222,21 @@ int ov9650_get_exposure(struct gspca_dev *gspca_dev, __s32 *val) err = m5602_read_sensor(sd, OV9650_COM1, &i2c_data, 1); if (err < 0) - goto out; + return err; *val = i2c_data & 0x03; err = m5602_read_sensor(sd, OV9650_AECH, &i2c_data, 1); if (err < 0) - goto out; + return err; *val |= (i2c_data << 2); err = m5602_read_sensor(sd, OV9650_AECHM, &i2c_data, 1); if (err < 0) - goto out; + return err; *val |= (i2c_data & 0x3f) << 10; PDEBUG(D_V4L2, "Read exposure %d", *val); -out: + return err; } @@ -254,20 +254,19 @@ int ov9650_set_exposure(struct gspca_dev *gspca_dev, __s32 val) err = m5602_write_sensor(sd, OV9650_AECHM, &i2c_data, 1); if (err < 0) - goto out; + return err; /* The 8 middle bits */ i2c_data = (val >> 2) & 0xff; err = m5602_write_sensor(sd, OV9650_AECH, &i2c_data, 1); if (err < 0) - goto out; + return err; /* The 2 LSBs */ i2c_data = val & 0x03; err = m5602_write_sensor(sd, OV9650_COM1, &i2c_data, 1); -out: return err; } @@ -390,7 +389,7 @@ int ov9650_set_hflip(struct gspca_dev *gspca_dev, __s32 val) PDEBUG(D_V4L2, "Set horizontal flip to %d", val); err = m5602_read_sensor(sd, OV9650_MVFP, &i2c_data, 1); if (err < 0) - goto out; + return err; if (dmi_check_system(ov9650_flip_dmi_table)) i2c_data = ((i2c_data & 0xdf) | @@ -400,7 +399,7 @@ int ov9650_set_hflip(struct gspca_dev *gspca_dev, __s32 val) ((val & 0x01) << 5)); err = m5602_write_sensor(sd, OV9650_MVFP, &i2c_data, 1); -out: + return err; } @@ -429,7 +428,7 @@ int ov9650_set_vflip(struct gspca_dev *gspca_dev, __s32 val) PDEBUG(D_V4L2, "Set vertical flip to %d", val); err = m5602_read_sensor(sd, OV9650_MVFP, &i2c_data, 1); if (err < 0) - goto out; + return err; if (dmi_check_system(ov9650_flip_dmi_table)) i2c_data = ((i2c_data & 0xef) | @@ -439,7 +438,7 @@ int ov9650_set_vflip(struct gspca_dev *gspca_dev, __s32 val) ((val & 0x01) << 4)); err = m5602_write_sensor(sd, OV9650_MVFP, &i2c_data, 1); -out: + return err; } @@ -451,13 +450,13 @@ int ov9650_get_brightness(struct gspca_dev *gspca_dev, __s32 *val) err = m5602_read_sensor(sd, OV9650_VREF, &i2c_data, 1); if (err < 0) - goto out; + return err; *val = (i2c_data & 0x03) << 8; err = m5602_read_sensor(sd, OV9650_GAIN, &i2c_data, 1); *val |= i2c_data; PDEBUG(D_V4L2, "Read gain %d", *val); -out: + return err; } @@ -473,19 +472,18 @@ int ov9650_set_brightness(struct gspca_dev *gspca_dev, __s32 val) corrupting the VREF high and low bits */ err = m5602_read_sensor(sd, OV9650_VREF, &i2c_data, 1); if (err < 0) - goto out; + return err; /* Mask away all uninteresting bits */ i2c_data = ((val & 0x0300) >> 2) | (i2c_data & 0x3F); err = m5602_write_sensor(sd, OV9650_VREF, &i2c_data, 1); if (err < 0) - goto out; + return err; /* The 8 LSBs */ i2c_data = val & 0xff; err = m5602_write_sensor(sd, OV9650_GAIN, &i2c_data, 1); -out: return err; } @@ -511,11 +509,11 @@ int ov9650_set_auto_white_balance(struct gspca_dev *gspca_dev, __s32 val) PDEBUG(D_V4L2, "Set auto white balance to %d", val); err = m5602_read_sensor(sd, OV9650_COM8, &i2c_data, 1); if (err < 0) - goto out; + return err; i2c_data = ((i2c_data & 0xfd) | ((val & 0x01) << 1)); err = m5602_write_sensor(sd, OV9650_COM8, &i2c_data, 1); -out: + return err; } @@ -541,11 +539,11 @@ int ov9650_set_auto_gain(struct gspca_dev *gspca_dev, __s32 val) PDEBUG(D_V4L2, "Set auto gain control to %d", val); err = m5602_read_sensor(sd, OV9650_COM8, &i2c_data, 1); if (err < 0) - goto out; + return err; i2c_data = ((i2c_data & 0xfb) | ((val & 0x01) << 2)); err = m5602_write_sensor(sd, OV9650_COM8, &i2c_data, 1); -out: + return err; } diff --git a/drivers/media/video/gspca/m5602/m5602_po1030.c b/drivers/media/video/gspca/m5602/m5602_po1030.c index 2e7fb91673cf..d509330f5f51 100644 --- a/drivers/media/video/gspca/m5602/m5602_po1030.c +++ b/drivers/media/video/gspca/m5602/m5602_po1030.c @@ -108,7 +108,7 @@ int po1030_get_exposure(struct gspca_dev *gspca_dev, __s32 *val) err = m5602_read_sensor(sd, PO1030_REG_INTEGLINES_H, &i2c_data, 1); if (err < 0) - goto out; + return err; *val = (i2c_data << 8); err = m5602_read_sensor(sd, PO1030_REG_INTEGLINES_M, @@ -116,7 +116,7 @@ int po1030_get_exposure(struct gspca_dev *gspca_dev, __s32 *val) *val |= i2c_data; PDEBUG(D_V4L2, "Exposure read as %d", *val); -out: + return err; } @@ -135,7 +135,7 @@ int po1030_set_exposure(struct gspca_dev *gspca_dev, __s32 val) err = m5602_write_sensor(sd, PO1030_REG_INTEGLINES_H, &i2c_data, 1); if (err < 0) - goto out; + return err; i2c_data = (val & 0xff); PDEBUG(D_V4L2, "Set exposure to low byte to 0x%x", @@ -143,7 +143,6 @@ int po1030_set_exposure(struct gspca_dev *gspca_dev, __s32 val) err = m5602_write_sensor(sd, PO1030_REG_INTEGLINES_M, &i2c_data, 1); -out: return err; } @@ -186,14 +185,13 @@ int po1030_set_hflip(struct gspca_dev *gspca_dev, __s32 val) PDEBUG(D_V4L2, "Set hflip %d", val); err = m5602_read_sensor(sd, PO1030_REG_CONTROL2, &i2c_data, 1); if (err < 0) - goto out; + return err; i2c_data = (0x7f & i2c_data) | ((val & 0x01) << 7); err = m5602_write_sensor(sd, PO1030_REG_CONTROL2, &i2c_data, 1); -out: return err; } @@ -222,14 +220,13 @@ int po1030_set_vflip(struct gspca_dev *gspca_dev, __s32 val) PDEBUG(D_V4L2, "Set vflip %d", val); err = m5602_read_sensor(sd, PO1030_REG_CONTROL2, &i2c_data, 1); if (err < 0) - goto out; + return err; i2c_data = (i2c_data & 0xbf) | ((val & 0x01) << 6); err = m5602_write_sensor(sd, PO1030_REG_CONTROL2, &i2c_data, 1); -out: return err; } diff --git a/drivers/media/video/gspca/m5602/m5602_s5k4aa.c b/drivers/media/video/gspca/m5602/m5602_s5k4aa.c index 41ae7f0b959f..921d009e02c4 100644 --- a/drivers/media/video/gspca/m5602/m5602_s5k4aa.c +++ b/drivers/media/video/gspca/m5602/m5602_s5k4aa.c @@ -237,17 +237,17 @@ int s5k4aa_get_exposure(struct gspca_dev *gspca_dev, __s32 *val) err = m5602_write_sensor(sd, S5K4AA_PAGE_MAP, &data, 1); if (err < 0) - goto out; + return err; err = m5602_read_sensor(sd, S5K4AA_EXPOSURE_HI, &data, 1); if (err < 0) - goto out; + return err; *val = data << 8; err = m5602_read_sensor(sd, S5K4AA_EXPOSURE_LO, &data, 1); *val |= data; PDEBUG(D_V4L2, "Read exposure %d", *val); -out: + return err; } @@ -260,14 +260,14 @@ int s5k4aa_set_exposure(struct gspca_dev *gspca_dev, __s32 val) PDEBUG(D_V4L2, "Set exposure to %d", val); err = m5602_write_sensor(sd, S5K4AA_PAGE_MAP, &data, 1); if (err < 0) - goto out; + return err; data = (val >> 8) & 0xff; err = m5602_write_sensor(sd, S5K4AA_EXPOSURE_HI, &data, 1); if (err < 0) - goto out; + return err; data = val & 0xff; err = m5602_write_sensor(sd, S5K4AA_EXPOSURE_LO, &data, 1); -out: + return err; } @@ -279,13 +279,12 @@ int s5k4aa_get_vflip(struct gspca_dev *gspca_dev, __s32 *val) err = m5602_write_sensor(sd, S5K4AA_PAGE_MAP, &data, 1); if (err < 0) - goto out; + return err; err = m5602_read_sensor(sd, S5K4AA_PAGE_MAP, &data, 1); *val = (data & S5K4AA_RM_V_FLIP) >> 7; PDEBUG(D_V4L2, "Read vertical flip %d", *val); -out: return err; } @@ -298,32 +297,32 @@ int s5k4aa_set_vflip(struct gspca_dev *gspca_dev, __s32 val) PDEBUG(D_V4L2, "Set vertical flip to %d", val); err = m5602_write_sensor(sd, S5K4AA_PAGE_MAP, &data, 1); if (err < 0) - goto out; + return err; err = m5602_write_sensor(sd, S5K4AA_READ_MODE, &data, 1); if (err < 0) - goto out; + return err; data = ((data & ~S5K4AA_RM_V_FLIP) | ((val & 0x01) << 7)); err = m5602_write_sensor(sd, S5K4AA_READ_MODE, &data, 1); if (err < 0) - goto out; + return err; if (val) { err = m5602_read_sensor(sd, S5K4AA_ROWSTART_LO, &data, 1); if (err < 0) - goto out; + return err; data++; err = m5602_write_sensor(sd, S5K4AA_ROWSTART_LO, &data, 1); } else { err = m5602_read_sensor(sd, S5K4AA_ROWSTART_LO, &data, 1); if (err < 0) - goto out; + return err; data--; err = m5602_write_sensor(sd, S5K4AA_ROWSTART_LO, &data, 1); } -out: + return err; } @@ -335,12 +334,12 @@ int s5k4aa_get_hflip(struct gspca_dev *gspca_dev, __s32 *val) err = m5602_write_sensor(sd, S5K4AA_PAGE_MAP, &data, 1); if (err < 0) - goto out; + return err; err = m5602_read_sensor(sd, S5K4AA_PAGE_MAP, &data, 1); *val = (data & S5K4AA_RM_H_FLIP) >> 6; PDEBUG(D_V4L2, "Read horizontal flip %d", *val); -out: + return err; } @@ -354,32 +353,32 @@ int s5k4aa_set_hflip(struct gspca_dev *gspca_dev, __s32 val) val); err = m5602_write_sensor(sd, S5K4AA_PAGE_MAP, &data, 1); if (err < 0) - goto out; + return err; err = m5602_write_sensor(sd, S5K4AA_READ_MODE, &data, 1); if (err < 0) - goto out; + return err; data = ((data & ~S5K4AA_RM_H_FLIP) | ((val & 0x01) << 6)); err = m5602_write_sensor(sd, S5K4AA_READ_MODE, &data, 1); if (err < 0) - goto out; + return err; if (val) { err = m5602_read_sensor(sd, S5K4AA_COLSTART_LO, &data, 1); if (err < 0) - goto out; + return err; data++; err = m5602_write_sensor(sd, S5K4AA_COLSTART_LO, &data, 1); if (err < 0) - goto out; + return err; } else { err = m5602_read_sensor(sd, S5K4AA_COLSTART_LO, &data, 1); if (err < 0) - goto out; + return err; data--; err = m5602_write_sensor(sd, S5K4AA_COLSTART_LO, &data, 1); } -out: + return err; } @@ -391,13 +390,12 @@ int s5k4aa_get_gain(struct gspca_dev *gspca_dev, __s32 *val) err = m5602_write_sensor(sd, S5K4AA_PAGE_MAP, &data, 1); if (err < 0) - goto out; + return err; err = m5602_read_sensor(sd, S5K4AA_GAIN_2, &data, 1); *val = data; PDEBUG(D_V4L2, "Read gain %d", *val); -out: return err; } @@ -410,12 +408,11 @@ int s5k4aa_set_gain(struct gspca_dev *gspca_dev, __s32 val) PDEBUG(D_V4L2, "Set gain to %d", val); err = m5602_write_sensor(sd, S5K4AA_PAGE_MAP, &data, 1); if (err < 0) - goto out; + return err; data = val & 0xff; err = m5602_write_sensor(sd, S5K4AA_GAIN_2, &data, 1); -out: return err; } diff --git a/drivers/media/video/gspca/m5602/m5602_s5k83a.c b/drivers/media/video/gspca/m5602/m5602_s5k83a.c index ccea4a758464..9bea347b9ef1 100644 --- a/drivers/media/video/gspca/m5602/m5602_s5k83a.c +++ b/drivers/media/video/gspca/m5602/m5602_s5k83a.c @@ -163,12 +163,11 @@ int s5k83a_get_brightness(struct gspca_dev *gspca_dev, __s32 *val) err = m5602_read_sensor(sd, S5K83A_BRIGHTNESS, data, 2); if (err < 0) - goto out; + return err; data[1] = data[1] << 1; *val = data[1]; -out: return err; } @@ -182,13 +181,13 @@ int s5k83a_set_brightness(struct gspca_dev *gspca_dev, __s32 val) data[1] = 0x20; err = m5602_write_sensor(sd, 0x14, data, 2); if (err < 0) - goto out; + return err; data[0] = 0x01; data[1] = 0x00; err = m5602_write_sensor(sd, 0x0d, data, 2); if (err < 0) - goto out; + return err; /* FIXME: This is not sane, we need to figure out the composition of these registers */ @@ -196,7 +195,6 @@ int s5k83a_set_brightness(struct gspca_dev *gspca_dev, __s32 val) data[1] = val >> 1; /* brightness, high 7 bits */ err = m5602_write_sensor(sd, S5K83A_BRIGHTNESS, data, 2); -out: return err; } @@ -208,11 +206,10 @@ int s5k83a_get_whiteness(struct gspca_dev *gspca_dev, __s32 *val) err = m5602_read_sensor(sd, S5K83A_WHITENESS, &data, 1); if (err < 0) - goto out; + return err; *val = data; -out: return err; } @@ -236,7 +233,7 @@ int s5k83a_get_gain(struct gspca_dev *gspca_dev, __s32 *val) err = m5602_read_sensor(sd, S5K83A_GAIN, data, 2); if (err < 0) - goto out; + return err; data[1] = data[1] & 0x3f; if (data[1] > S5K83A_MAXIMUM_GAIN) @@ -244,7 +241,6 @@ int s5k83a_get_gain(struct gspca_dev *gspca_dev, __s32 *val) *val = data[1]; -out: return err; } @@ -269,12 +265,11 @@ int s5k83a_get_vflip(struct gspca_dev *gspca_dev, __s32 *val) data[0] = 0x05; err = m5602_write_sensor(sd, S5K83A_PAGE_MAP, data, 1); if (err < 0) - goto out; + return err; err = m5602_read_sensor(sd, S5K83A_FLIP, data, 1); *val = (data[0] | 0x40) ? 1 : 0; -out: return err; } @@ -287,23 +282,22 @@ int s5k83a_set_vflip(struct gspca_dev *gspca_dev, __s32 val) data[0] = 0x05; err = m5602_write_sensor(sd, S5K83A_PAGE_MAP, data, 1); if (err < 0) - goto out; + return err; err = m5602_read_sensor(sd, S5K83A_FLIP, data, 1); if (err < 0) - goto out; + return err; /* set or zero six bit, seven is hflip */ data[0] = (val) ? (data[0] & 0x80) | 0x40 | S5K83A_FLIP_MASK : (data[0] & 0x80) | S5K83A_FLIP_MASK; err = m5602_write_sensor(sd, S5K83A_FLIP, data, 1); if (err < 0) - goto out; + return err; data[0] = (val) ? 0x0b : 0x0a; err = m5602_write_sensor(sd, S5K83A_VFLIP_TUNE, data, 1); -out: return err; } @@ -316,12 +310,11 @@ int s5k83a_get_hflip(struct gspca_dev *gspca_dev, __s32 *val) data[0] = 0x05; err = m5602_write_sensor(sd, S5K83A_PAGE_MAP, data, 1); if (err < 0) - goto out; + return err; err = m5602_read_sensor(sd, S5K83A_FLIP, data, 1); *val = (data[0] | 0x80) ? 1 : 0; -out: return err; } @@ -334,21 +327,21 @@ int s5k83a_set_hflip(struct gspca_dev *gspca_dev, __s32 val) data[0] = 0x05; err = m5602_write_sensor(sd, S5K83A_PAGE_MAP, data, 1); if (err < 0) - goto out; + return err; err = m5602_read_sensor(sd, S5K83A_FLIP, data, 1); if (err < 0) - goto out; + return err; /* set or zero seven bit, six is vflip */ data[0] = (val) ? (data[0] & 0x40) | 0x80 | S5K83A_FLIP_MASK : (data[0] & 0x40) | S5K83A_FLIP_MASK; err = m5602_write_sensor(sd, S5K83A_FLIP, data, 1); if (err < 0) - goto out; + return err; data[0] = (val) ? 0x0a : 0x0b; err = m5602_write_sensor(sd, S5K83A_HFLIP_TUNE, data, 1); -out: + return err; }