Author: imp
Date: Sat Mar 28 06:22:11 2009
New Revision: 190488
URL: http://svn.freebsd.org/changeset/base/190488
Log:
When reading via memory, read in (amount + 1) / 2 (to properly round
up) rather than amount + 1 / 2, which is the same as amount, or 2x too
many words which leads to data corruption.
# This fixes the sbdrop panics I was seeing with the Toshiba LANCT00A.
Modified:
head/sys/dev/ed/if_ed.c
Modified: head/sys/dev/ed/if_ed.c
==============================================================================
--- head/sys/dev/ed/if_ed.c Sat Mar 28 06:12:39 2009 (r190487)
+++ head/sys/dev/ed/if_ed.c Sat Mar 28 06:22:11 2009 (r190488)
@@ -1311,7 +1311,7 @@ ed_shmem_readmem16(struct ed_softc *sc,
uint16_t amount)
{
bus_space_read_region_2(sc->mem_bst, sc->mem_bsh, src, (uint16_t *)dst,
- amount + 1 / 2);
+ (amount + 1) / 2);
}
/*
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