init dma masks in pnp_dev
PNP now initializes device dma masks, which prevents oopses when generic
dma calls are made using pnp device nodes.
This assumes PNP only uses ISA DMA, with 24 bit addresses; and that it's
safe to init those masks for all devices (rather than finding out which
devices have been assigned DMA channels, and handling only those).
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Cc: Adam Belay <abelay@novell.com>
Cc: Jaroslav Kysela <perex@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/include/linux/pnp.h b/include/linux/pnp.h
index 9a5226f..00dae5b 100644
--- a/include/linux/pnp.h
+++ b/include/linux/pnp.h
@@ -177,6 +177,7 @@
struct pnp_dev {
struct device dev; /* Driver Model device interface */
+ u64 dma_mask;
unsigned char number; /* used as an index, must be unique */
int status;