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path: root/drivers/media/usb/ttusb-dec
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2017-08-20media: usb: constify usb_device_idArvind Yadav
usb_device_id are not supposed to change at runtime. All functions working with usb_device_id provided by <linux/usb.h> work with const usb_device_id. So mark the non-const structs as const. 'drivers/media/usb/b2c2/flexcop-usb.c' Fix checkpatch.pl error: ERROR: space prohibited before open square bracket '['. Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-01-27[media] media: Drop FSF's postal address from the source code filesSakari Ailus
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 Of the 628 removed instances, 578 are outdated.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 $a; close(F);'; done Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
2016-11-18[media] dvb: make DVB frontend *_ops instances "const"Max Kellermann
These are immutable. Making them "const" allows the compiler to move them to the "rodata" section. Note that cxd2841er_t_c_ops cannot be made "const", because cxd2841er_attach() modifies it. Ouch! [mchehab@s-opensource.com: fix merge conflicts] Signed-off-by: Max Kellermann <max.kellermann@gmail.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-11-18[media] ttusb_dec: use KERNEL_CONT where neededMauro Carvalho Chehab
Some continuation messages are not using KERNEL_CONT. Since commit 563873318d32 ("Merge branch 'printk-cleanups"), this won't work as expected anymore. So, let's add KERN_CONT to those lines. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-10-21[media] ttusb-dec: don't break long linesMauro Carvalho Chehab
Due to the 80-cols restrictions, and latter due to checkpatch warnings, several strings were broken into multiple lines. This is not considered a good practice anymore, as it makes harder to grep for strings at the source code. As we're right now fixing other drivers due to KERN_CONT, we need to be able to identify what printk strings don't end with a "\n". It is a way easier to detect those if we don't break long lines. So, join those continuation lines. The patch was generated via the script below, and manually adjusted if needed. </script> use Text::Tabs; while (<>) { if ($next ne "") { $c=$_; if ($c =~ /^\s+\"(.*)/) { $c2=$1; $next =~ s/\"\n$//; $n = expand($next); $funpos = index($n, '('); $pos = index($c2, '",'); if ($funpos && $pos > 0) { $s1 = substr $c2, 0, $pos + 2; $s2 = ' ' x ($funpos + 1) . substr $c2, $pos + 2; $s2 =~ s/^\s+//; $s2 = ' ' x ($funpos + 1) . $s2 if ($s2 ne ""); print unexpand("$next$s1\n"); print unexpand("$s2\n") if ($s2 ne ""); } else { print "$next$c2\n"; } $next=""; next; } else { print $next; } $next=""; } else { if (m/\"$/) { if (!m/\\n\"$/) { $next=$_; next; } } } print $_; } </script> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-10-21[media] dvb-core: move dvb_filter out of the DVB coreMauro Carvalho Chehab
The dvb_filter.c can hardly be considered as part of the DVB core. More than half of the code there is commented out by av7110 and ttusb_dec. On the latter, just two small helper functions and a struct definition is used. Being part of the core means that it would require an amount of work to fix issues in it, like bad printk's on it, and to document it on some future, like other kAPI headers. It simply not worth the effort for something that seems to be deprecated, as no new drivers use it. So, move it out of the core, by moving it to pci/ttpci directory, where av7110 driver is kept, and copy the two routines used by ttyusb_dec directly into its code. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-09-22[media] ttusb_dec: avoid the risk of go past bufferMauro Carvalho Chehab
Fixes this smatch warning: drivers/media/usb/ttusb-dec/ttusb_dec.c:243 ttusb_dec_handle_irq() error: buffer overflow 'rc_keys' 26 <= 126 As the RC keys should be enabled previously, via: set_bit(rc_keys[i], input_dev->keybit); It wouldn't go past the buffer in practice. Yet, as bad things may happen when going past buffer, it doesn't hurt adding a check here. While here, fix CodingStyle issues on the routine. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2015-11-19[media] ttusb-dec: constify ttusbdecfe_config structureJulia Lawall
The ttusbdecfe_config structure is never modified, so declare it as const. Other references to this structure type were already declared as const. Done with the help of Coccinelle. Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-10-06[media] dvb: get rid of enum dmx_successMauro Carvalho Chehab
This enum is not actually used anymore. The only value used from the enum is DMX_OK, passed as a parameter on two callbacks. Yet, this value is not used anywhere. So, just remove it. Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-07-17[media] ttusb-dec: use swap() in swap_bytes()Fabian Frederick
Use kernel.h macro definition. Thanks to Julia Lawall for Coccinelle scripting support. Signed-off-by: Fabian Frederick <fabf@skynet.be> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-06-09[media] dvb: Get rid of typedev usage for enumsMauro Carvalho Chehab
The DVB API was originally defined using typedefs. This is against Kernel CodingStyle, and there's no good usage here. While we can't remove its usage on userspace, we can avoid its usage in Kernelspace. So, let's do it. This patch was generated by this shell script: for j in $(grep typedef include/uapi/linux/dvb/frontend.h |cut -d' ' -f 3); do for i in $(find drivers/media -name '*.[ch]' -type f) $(find drivers/staging/media -name '*.[ch]' -type f); do sed "s,${j}_t,enum $j," <$i >a && mv a $i; done; done While here, make CodingStyle fixes on the affected lines. Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com> Acked-by: Stefan Richter <stefanr@s5r6.in-berlin.de> # for drivers/media/firewire/*
2015-05-01[media] ttusb-dec: fix bad indentationMauro Carvalho Chehab
drivers/media/usb/ttusb-dec/ttusb_dec.c:1434 ttusb_dec_init_stb() warn: inconsistent indenting Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2014-09-23[media] ttusb-dec: buffer overflow in ioctlDan Carpenter
We need to add a limit check here so we don't overflow the buffer. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2014-08-08media: use pci_zalloc_consistentJoe Perches
Remove the now unnecessary memset too. Signed-off-by: Joe Perches <joe@perches.com> Cc: Hans Verkuil <hverkuil@xs4all.nl> Cc: Mauro Carvalho Chehab <m.chehab@samsung.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-10-03[media] dvb-usb: fix error handling in ttusb_dec_probe()Alexey Khoroshilov
There is an asymmetry in ttusb_dec_init_usb()-ttusb_init_rc() and ttusb_dec_exit_usb()-ttusb_dec_exit_rc() in terms of resources allocated-deallocated. irq_urb and irq_buffer are allocated in ttusb_dec_init_usb(), while they are deallocated in ttusb_dec_exit_rc(). As a result there is a leak of them in ttusb_dec_probe(). The patch fixes the asymmetry and a leak on a failure path in ttusb_dec_init_usb(). By the way, it - removes usage of -1 as a custom error code, - replaces GFP_ATOMIC by GFP_KERNEL in usb_alloc_coherent() in ttusb_dec_init_usb() as soon as all other memory allocation done with GFP_KERNEL; - refactors ttusb_dec_boot_dsp() in an equivalent way except for returning 0 instead of 1 if ttusb_dec_boot_dsp() succeed in (!mode) branch. Found by Linux Driver Verification project (linuxtesting.org). Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru> Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2013-04-08[media] demux.h: Remove duplicated enumMauro Carvalho Chehab
"enum dmx_ts_pes" and "typedef enum dmx_pes_type_t" are just the same enum declared twice, since Kernel (2.6.12). There's no reason to duplicate it there, and sparse complains about that: drivers/media/dvb-core/dmxdev.c:600:55: warning: mixing different enum types So, remove the internal define, keeping just the external one. Internally, use only "enum dmx_ts_pes", as it is too late to drop dmx_pes_type_t from the userspace API. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-08-13[media] dvb-usb: move it to drivers/media/usb/dvb-usbMauro Carvalho Chehab
As media/dvb will be removed, move it to a proper place. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>