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| author | Randy Dunlap <randy.dunlap@oracle.com> | 2010-02-08 20:30:44 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2010-05-19 12:58:30 -0300 |
| commit | 30d81bb086c84d54cde4dd4d0c75d9455224632b (patch) | |
| tree | 052b04fc32e00d36f549f1990cd3492e5a05de1b /drivers/media/dvb/dvb-usb/cxusb.c | |
| parent | 84e2f037ce9672d0fb118e3e82cecfe6122ace3f (diff) | |
| download | kernel_samsung_smdk4412-30d81bb086c84d54cde4dd4d0c75d9455224632b.zip kernel_samsung_smdk4412-30d81bb086c84d54cde4dd4d0c75d9455224632b.tar.gz kernel_samsung_smdk4412-30d81bb086c84d54cde4dd4d0c75d9455224632b.tar.bz2 | |
V4L/DVB: dib7000p: reduce large stack usage
This patch reduces static stack usage of one of the 2 top offenders
as listed by 'make checkstack':
Building with CONFIG_FRAME_WARN=2048 produces:
drivers/media/dvb/frontends/dib7000p.c:1367: warning: the frame size of 2320 bytes is larger than 2048 bytes
and in 'make checkstack', the stack usage goes from:
0x00002409 dib7000p_i2c_enumeration [dib7000p]: 2328
to unlisted with this patch.
Also change one caller of dib7000p_i2c_enumeration() to check its
return value.
I don't have the hardware that is needed to test this patch.
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/dvb/dvb-usb/cxusb.c')
| -rw-r--r-- | drivers/media/dvb/dvb-usb/cxusb.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/media/dvb/dvb-usb/cxusb.c b/drivers/media/dvb/dvb-usb/cxusb.c index 33a83f9..0eb4908 100644 --- a/drivers/media/dvb/dvb-usb/cxusb.c +++ b/drivers/media/dvb/dvb-usb/cxusb.c @@ -1025,8 +1025,9 @@ static int cxusb_dualdig4_rev2_frontend_attach(struct dvb_usb_adapter *adap) cxusb_bluebird_gpio_pulse(adap->dev, 0x02, 1); - dib7000p_i2c_enumeration(&adap->dev->i2c_adap, 1, 18, - &cxusb_dualdig4_rev2_config); + if (dib7000p_i2c_enumeration(&adap->dev->i2c_adap, 1, 18, + &cxusb_dualdig4_rev2_config) < 0) + return -ENODEV; adap->fe = dvb_attach(dib7000p_attach, &adap->dev->i2c_adap, 0x80, &cxusb_dualdig4_rev2_config); |