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| author | Aditya Pakki <pakki001@umn.edu> | 2018-12-27 13:58:01 -0500 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab+samsung@kernel.org> | 2019-01-16 11:45:33 -0500 |
| commit | 467a37fba93f2b4fe3ab597ff6a517b22b566882 (patch) | |
| tree | 849ce0d03886a9c479df8201cc84a98a23de372d /drivers/media/dvb-frontends | |
| parent | 0f787c12ee7b2b41a74594ed158a0112736f4e4e (diff) | |
| download | linux-467a37fba93f2b4fe3ab597ff6a517b22b566882.tar.bz2 | |
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: Aditya Pakki <pakki001@umn.edu>
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Diffstat (limited to 'drivers/media/dvb-frontends')
| -rw-r--r-- | drivers/media/dvb-frontends/sp8870.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/media/dvb-frontends/sp8870.c b/drivers/media/dvb-frontends/sp8870.c index 8d31cf3f4f07..270a3c559e08 100644 --- a/drivers/media/dvb-frontends/sp8870.c +++ b/drivers/media/dvb-frontends/sp8870.c @@ -293,7 +293,9 @@ static int sp8870_set_frontend_parameters(struct dvb_frontend *fe) sp8870_writereg(state, 0xc05, reg0xc05); // 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 sp8870_microcontroller_start(state); |