From 1f97947c15a8d2bc21917463eb72d7f8685e3a86 Mon Sep 17 00:00:00 2001 From: Mauro Carvalho Chehab Date: Sun, 27 Jul 2014 16:27:30 -0300 Subject: [PATCH] [media] cx231xx: handle errors at read_eeprom() Fix the following warnings: drivers/media/usb/cx231xx/cx231xx-cards.c: In function 'read_eeprom': drivers/media/usb/cx231xx/cx231xx-cards.c:979:6: warning: variable 'ret' set but not used [-Wunused-but-set-variable] Signed-off-by: Mauro Carvalho Chehab --- drivers/media/usb/cx231xx/cx231xx-cards.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) diff --git a/drivers/media/usb/cx231xx/cx231xx-cards.c b/drivers/media/usb/cx231xx/cx231xx-cards.c index 5812c63e1e4b..8039b769f258 100644 --- a/drivers/media/usb/cx231xx/cx231xx-cards.c +++ b/drivers/media/usb/cx231xx/cx231xx-cards.c @@ -991,13 +991,20 @@ static int read_eeprom(struct cx231xx *dev, u8 *eedata, int len) /* start reading at offset 0 */ ret = i2c_transfer(&dev->i2c_bus[1].i2c_adap, &msg_write, 1); + if (ret < 0) { + cx231xx_err("Can't read eeprom\n"); + return ret; + } while (len_todo > 0) { msg_read.len = (len_todo > 64) ? 64 : len_todo; msg_read.buf = eedata_cur; ret = i2c_transfer(&dev->i2c_bus[1].i2c_adap, &msg_read, 1); - + if (ret < 0) { + cx231xx_err("Can't read eeprom\n"); + return ret; + } eedata_cur += msg_read.len; len_todo -= msg_read.len; }