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V4L/DVB (11789): xc5000: check xc5000_readreg return value for XC_RESULT_SUCCESS

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Make return value checking for calls to i2c routines explicit.

Signed-off-by: Devin Heitmueller <devin.heitmueller@gmail.com>
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Devin Heitmueller 2008-11-16 20:23:19 -03:00 committed by Mauro Carvalho Chehab
parent d7800d4ea9
commit 7988fc216d
1 changed files with 4 additions and 4 deletions
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8
drivers/media/common/tuners/xc5000.c
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@ -428,7 +428,7 @@ static int xc_get_frequency_error(struct xc5000_priv *priv, u32 *freq_error_hz)
u32 tmp;
result = xc5000_readreg(priv, XREG_FREQ_ERROR, &regData);
if (result)
if (result != XC_RESULT_SUCCESS)
return result;
tmp = (u32)regData;
@ -449,7 +449,7 @@ static int xc_get_version(struct xc5000_priv *priv,
int result;
result = xc5000_readreg(priv, XREG_VERSION, &data);
if (result)
if (result != XC_RESULT_SUCCESS)
return result;
(*hw_majorversion) = (data >> 12) & 0x0F;
@ -466,7 +466,7 @@ static int xc_get_hsync_freq(struct xc5000_priv *priv, u32 *hsync_freq_hz)
int result;
result = xc5000_readreg(priv, XREG_HSYNC_FREQ, &regData);
if (result)
if (result != XC_RESULT_SUCCESS)
return result;
(*hsync_freq_hz) = ((regData & 0x0fff) * 763)/100;
@ -960,7 +960,7 @@ struct dvb_frontend *xc5000_attach(struct dvb_frontend *fe,
/* Check if firmware has been loaded. It is possible that another
instance of the driver has loaded the firmware.
*/
if (xc5000_readreg(priv, XREG_PRODUCT_ID, &id) != 0)
if (xc5000_readreg(priv, XREG_PRODUCT_ID, &id) != XC_RESULT_SUCCESS)
goto fail;
switch (id) {