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| author | Cohen David.A <david.cohen@nokia.com> | 2009-05-11 11:00:20 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2009-06-16 18:21:10 -0300 |
| commit | 1010ed132727bbf486ac28fd149ccfb0ef5cd2ab (patch) | |
| tree | aa95ea2fb7cc5aec23c83ea650e8397a593d1c8d /Documentation/video4linux | |
| parent | 04a37e0f32f9882430bc1899899d2ed91b8aaf5b (diff) | |
| download | lwn-1010ed132727bbf486ac28fd149ccfb0ef5cd2ab.tar.gz lwn-1010ed132727bbf486ac28fd149ccfb0ef5cd2ab.zip | |
V4L/DVB (11840): change kmalloc to vmalloc for sglist allocation in videobuf_dma_map/unmap
Change kmalloc()/kfree() to vmalloc()/vfree() for sglist allocation
during videobuf_dma_map() and videobuf_dma_unmap()
High resolution sensors might require too many contiguous pages
to be allocated for sglist by kmalloc() during videobuf_dma_map()
(i.e. 256Kib for 8MP sensor).
In such situations, kmalloc() could face some problem to find the
required free memory. vmalloc() is a safer solution instead, as the
allocated memory does not need to be contiguous.
Signed-off-by: David Cohen <david.cohen@nokia.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'Documentation/video4linux')
| -rw-r--r-- | Documentation/video4linux/CARDLIST.em28xx | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/Documentation/video4linux/CARDLIST.em28xx b/Documentation/video4linux/CARDLIST.em28xx index bf58d957e0df..20aa65a7059c 100644 --- a/Documentation/video4linux/CARDLIST.em28xx +++ b/Documentation/video4linux/CARDLIST.em28xx @@ -62,3 +62,5 @@ 64 -> Easy Cap Capture DC-60 (em2860) 65 -> IO-DATA GV-MVP/SZ (em2820/em2840) [04bb:0515] 66 -> Empire dual TV (em2880) + 67 -> Terratec Grabby (em2860) [0ccd:0096] + 68 -> Terratec AV350 (em2860) [0ccd:0084] |