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authorAlan Cox <alan@lxorguk.ukuu.org.uk>2006-09-14 11:47:55 -0300
committerMauro Carvalho Chehab <mchehab@infradead.org>2006-09-26 12:30:36 -0300
commite355880b838c80ff53e6386a1caad10e6f719259 (patch)
treebb9400b4f6dc2d994bf4d428b2ec6c617af1f52f /drivers/media/video/zoran_driver.c
parentd7e7a1567894146ca6c9442c824dded4f0f48dde (diff)
downloadop-kernel-dev-e355880b838c80ff53e6386a1caad10e6f719259.zip
op-kernel-dev-e355880b838c80ff53e6386a1caad10e6f719259.tar.gz
V4L/DVB (4632): Zoran: Implement pcipci failure check
We should be doing this on all devices doing PCI<->PCI DMA. We only set the _FAIL ones when the DMA will fail or may cause crashes. This relies on the PCIAGP_FAIL patch I sent to Andrew already Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
Diffstat (limited to 'drivers/media/video/zoran_driver.c')
-rw-r--r--drivers/media/video/zoran_driver.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/media/video/zoran_driver.c b/drivers/media/video/zoran_driver.c
index 5f90db2..862a984 100644
--- a/drivers/media/video/zoran_driver.c
+++ b/drivers/media/video/zoran_driver.c
@@ -1512,6 +1512,13 @@ setup_fbuffer (struct file *file,
if (!capable(CAP_SYS_ADMIN) && !capable(CAP_SYS_RAWIO))
return -EPERM;
+ /* Don't allow frame buffer overlay if PCI or AGP is buggy, or on
+ ALi Magik (that needs very low latency while the card needs a
+ higher value always) */
+
+ if (pci_pci_problems & (PCIPCI_FAIL | PCIAGP_FAIL | PCIPCI_ALIMAGIK))
+ return -ENXIO;
+
/* we need a bytesperline value, even if not given */
if (!bytesperline)
bytesperline = width * ((fmt->depth + 7) & ~7) / 8;
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