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authorHans Verkuil <hverkuil@xs4all.nl>2008-07-27 14:08:54 -0300
committerMauro Carvalho Chehab <mchehab@infradead.org>2008-07-27 18:07:58 -0300
commit429e90893c9ad2c266d541c94d6ca69a34a7701d (patch)
tree2e71b21410b5c0b6970eab25cb5098687a83dd0d /Documentation
parentee56a4d3e39c2baafd06aaf26d975a7c9b05e3a2 (diff)
V4L/DVB (8546): saa7146: fix read from uninitialized memory
The offset field of the scatterlist entry *after* the last valid scatterlist entry was used instead of the first scatterlist entry (as was the intention of this code). This worked fine until the kzalloc of the sglist was replaced with kmalloc and sg_init_table only zeroed the exact needed length. Apparently kzalloc zeroes a bit more than is strictly necessary so the offset field was always 0 in the past. But now the offset field was suddenly random and this led to broken captures. Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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