From 7a7cd1920969dd9da4e0d99aab573b3eba24c799 Mon Sep 17 00:00:00 2001 From: Oliver Endriss Date: Tue, 13 Mar 2007 23:44:57 -0300 Subject: V4L/DVB (5441): Saa7146: Fix allocation of clipping memory 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. Thanks-to: Olaf Hering Acked-by: Michael Hunold Signed-off-by: Oliver Endriss Signed-off-by: Mauro Carvalho Chehab --- include/media/saa7146_vv.h | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'include/media/saa7146_vv.h') diff --git a/include/media/saa7146_vv.h b/include/media/saa7146_vv.h index 83fe2e3d1e25..50e33b0e9349 100644 --- a/include/media/saa7146_vv.h +++ b/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 v1.2.1