Commit 467a37fb authored by Aditya Pakki's avatar Aditya Pakki Committed by Mauro Carvalho Chehab

media: dvb: Add check on sp8870_readreg

In sp8870_set_frontend_parameters, the function sp8870_readreg
may return an error when i2c_transfer fails. The fix checks for
this error and returns upstream consistent with other invocations.
Signed-off-by: default avatarAditya Pakki <pakki001@umn.edu>
Signed-off-by: default avatarSean Young <sean@mess.org>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab+samsung@kernel.org>
parent 0f787c12
...@@ -293,7 +293,9 @@ static int sp8870_set_frontend_parameters(struct dvb_frontend *fe) ...@@ -293,7 +293,9 @@ static int sp8870_set_frontend_parameters(struct dvb_frontend *fe)
sp8870_writereg(state, 0xc05, reg0xc05); sp8870_writereg(state, 0xc05, reg0xc05);
// read status reg in order to clear pending irqs // read status reg in order to clear pending irqs
sp8870_readreg(state, 0x200); err = sp8870_readreg(state, 0x200);
if (err)
return err;
// system controller start // system controller start
sp8870_microcontroller_start(state); sp8870_microcontroller_start(state);
......
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