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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>
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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>
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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>
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"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>
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As media/dvb will be removed, move it to a proper place.
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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