digitv: limit messages to buffer size

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commit 821117dc21 upstream.

Return an error rather than memcpy()ing beyond the end of the buffer.
Internal callers use appropriate sizes, but digitv_i2c_xfer may not.

Signed-off-by: Alyssa Milburn <amilburn@zall.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
[bwh: Backported to 3.16: adjust context]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>

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Alyssa Milburn 2017-04-01 14:33:42 -03:00 • committed by Ben Hutchings

parent 33705f52f3

commit f369ecd897

1 changed files with 4 additions and 0 deletions

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drivers/media/usb/dvb-usb/digitv.c

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