Commit Graph

17 Commits

Author SHA1 Message Date
Bhumika Goyal 38c4f03acf media: usb: make snd_pcm_hardware const
Make these const as they are only used during a copy operation.
Done using Coccinelle.

Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-08-20 08:05:10 -04:00
Johan Hovold 65f921647f [media] cx231xx-audio: fix NULL-deref at probe
Make sure to check the number of endpoints to avoid dereferencing a
NULL-pointer or accessing memory beyond the endpoint array should a
malicious device lack the expected endpoints.

Fixes: e0d3bafd02 ("V4L/DVB (10954): Add cx231xx USB driver")

Cc: stable <stable@vger.kernel.org>     # 2.6.30
Cc: Sri Deevi <Srinivasa.Deevi@conexant.com>
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-04-10 07:34:46 -03:00
Johan Hovold fff1abc4d5 [media] cx231xx-audio: fix init error path
Make sure to release the snd_card also on a late allocation error.

Fixes: e0d3bafd02 ("V4L/DVB (10954): Add cx231xx USB driver")

Cc: stable <stable@vger.kernel.org>     # 2.6.30
Cc: Sri Deevi <Srinivasa.Deevi@conexant.com>
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-04-10 07:34:10 -03:00
Sakari Ailus bcb63314e2 [media] media: Drop FSF's postal address from the source code files
Drop the FSF's postal address from the source code files that typically
contain mostly the license text. Of the 628 removed instances, 578 are
outdated.

The patch has been created with the following command without manual edits:

git grep -l "675 Mass Ave\|59 Temple Place\|51 Franklin St" -- \
	drivers/media/ include/media|while read i; do i=$i perl -e '
open(F,"< $ENV{i}");
$a=join("", <F>);
$a =~ s/[ \t]*\*\n.*You should.*\n.*along with.*\n.*(\n.*USA.*$)?\n//m
	&& $a =~ s/(^.*)Or, (point your browser to) /$1To obtain the license, $2\n$1/m;
close(F);
open(F, "> $ENV{i}");
print F $a;
close(F);'; done

Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
2017-01-27 11:38:09 -02:00
Julia Lawall 22511cfa7d [media] usb: constify snd_pcm_ops structures
Check for snd_pcm_ops structures that are only stored in the ops field of a
snd_soc_platform_driver structure or passed as the third argument to
snd_pcm_set_ops.  The corresponding field or parameter is declared const,
so snd_pcm_ops structures that have this property can be declared as const
also.

The semantic patch that makes this change is as follows:
(http://coccinelle.lip6.fr/)

// <smpl>
@r disable optional_qualifier@
identifier i;
position p;
@@
static struct snd_pcm_ops i@p = { ... };

@ok1@
identifier r.i;
struct snd_soc_platform_driver e;
position p;
@@
e.ops = &i@p;

@ok2@
identifier r.i;
expression e1, e2;
position p;
@@
snd_pcm_set_ops(e1, e2, &i@p)

@bad@
position p != {r.p,ok1.p,ok2.p};
identifier r.i;
struct snd_pcm_ops e;
@@
e@i@p

@depends on !bad disable optional_qualifier@
identifier r.i;
@@
static
+const
 struct snd_pcm_ops i = { ... };
// </smpl>

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-09-19 16:19:10 -03:00
Wolfram Sang c86bc45d41 [media] media: usb: cx231xx: cx231xx-audio: don't print error when allocating urb fails
kmalloc will print enough information in case of failure.

Signed-off-by: Wolfram Sang <wsa-dev@sang-engineering.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-08-24 08:49:15 -03:00
Jean-Baptiste Theou 9dd73448c6 [media] cx231xx: Fix memory leak
dma_area needs to be freed when the device is closed.

Based on em23xx-audio.c

Signed-off-by: Jean-Baptiste Theou <jtheou@adeneo-embedded.us>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-02-01 08:00:47 -02:00
Mauro Carvalho Chehab 7e16e3fe1b [media] cx231xx: Remove a bogus check for NULL
As reported by kbuild test robot:
	drivers/media/usb/cx231xx/cx231xx-audio.c:445:16-20: ERROR: dev is NULL but dereferenced.

Reported-by: kbuild test robot <fengguang.wu@intel.com>
Reported-by: Julia Lawall <julia.lawall@lip6.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2014-11-03 18:56:48 -02:00
Mauro Carvalho Chehab 336fea9229 [media] cx231xx: Improve the log message
Unfortunately, on devices that have multiple interfaces, udev->dev
points to the parent device (usb) instead of the cx231xx specific one.

Due to that the logs don't look too nice, as they'll print messages
as if they were produced by USB core:
  usb-1-2: New device Conexant Corporation Polaris AV Capturb @ 480 Mbps (1554:5010) with 7 interfaces

Instead of using the name of the parent device, let's use the name
of the first cx231xx interface for all cx231xx sub-modules.

With this path, the logs will be nicer:

  cx231xx 1-2:1.1: New device Conexant Corporation Polaris AV Capturb @ 480 Mbps (1554:5010) with 7 interfaces

Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2014-11-03 15:59:59 -02:00
Mauro Carvalho Chehab 56d8a3b068 [media] cx231xx: get rid of audio debug parameter
There's just one debug level on cx231xx-audio. So, converting it
to dev_dbg() is easy.

Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2014-11-03 15:58:09 -02:00
Mauro Carvalho Chehab b7085c0864 [media] cx231xx: convert from pr_foo to dev_foo
Replace all pr_foo occurrences by dev_foo, as this is
the recommended way for drivers.

Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2014-11-03 15:57:54 -02:00
Mauro Carvalho Chehab ed0e3729c9 [media] cx231xx: Cleanup printk at the driver
There are lots of debug printks printed with pr_info. Also, the
printk's data are not too coherent:

- there are duplicated driver name at the print format;
- function name format string differs from function to function;
- long strings broken into multiple lines;
- some printks just produce ugly reports, being almost useless
  as-is.

Do a cleanup on that.

Still, there are much to be done in order to do a better printk
job on this driver, but, at least it will now be a way less
verbose, if debug printks are disabled, and some logs might
actually be useful.

Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2014-11-03 15:56:22 -02:00
Mauro Carvalho Chehab 589dadf299 [media] cx231xx: get rid of driver-defined printk macros
It currently does just like what pr_foo() macros do. So,
replace them.

A deeper cleanup is needed, as there are lots of debug macros
printed with pr_info.

Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2014-11-03 15:55:23 -02:00
Takashi Iwai e735688875 [media] Convert to snd_card_new() with a device pointer
Also remove superfluous snd_card_set_dev() calls.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-02-14 08:14:09 +01:00
Hans Verkuil 69a11a3264 [media] cx231xx: fix big-endian problems
Tested on my big-endian ppc-based test machine.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-03-05 14:26:07 -03:00
Hans Verkuil d2370f8eee [media] cx231xx: convert to the control framework
This is needed to resolve the v4l2-compliance complaints about the control
ioctls.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-03-05 14:25:59 -03:00
Mauro Carvalho Chehab 0c0d06cac6 [media] rename most media/video usb drivers to media/usb
Rename all USB drivers with their own directory under
drivers/media/video into drivers/media/usb and update the
building system.

Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-08-15 16:25:07 -03:00