From 806e8a78b6b2b8bbab30dafd89ada8402e9564ed Mon Sep 17 00:00:00 2001 From: Oliver Endriss Date: Wed, 14 Mar 2007 03:44:57 +0100 Subject: saa7146: Fix allocation of clipping memory From: Oliver Endriss Olaf Hering pointed out that SAA7146_CLIPPING_MEM would become very large for PAGE_SIZE > 4K. In fact the number of clipping windows is limited to 16, and calculate_clipping_registers_rect() does not use more than 256 bytes. SAA7146_CLIPPING_MEM adjusted accordingly. Signed-off-by: Oliver Endriss Thanks-to: Olaf Hering Acked-by: Michael Hunold --- linux/include/media/saa7146_vv.h | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'linux') diff --git a/linux/include/media/saa7146_vv.h b/linux/include/media/saa7146_vv.h index 83fe2e3d1..50e33b0e9 100644 --- a/linux/include/media/saa7146_vv.h +++ b/linux/include/media/saa7146_vv.h @@ -239,7 +239,8 @@ void saa7146_res_free(struct saa7146_fh *fh, unsigned int bits); #define SAA7146_HPS_SYNC_PORT_B 0x01 /* some memory sizes */ -#define SAA7146_CLIPPING_MEM (14*PAGE_SIZE) +/* max. 16 clipping rectangles */ +#define SAA7146_CLIPPING_MEM (16 * 4 * sizeof(u32)) /* some defines for the various clipping-modes */ #define SAA7146_CLIPPING_RECT 0x4 -- cgit v1.2.3