diff options
| author | Stephen Hemminger <shemminger@osdl.org> | 2006-04-05 17:47:15 -0700 |
|---|---|---|
| committer | Jeff Garzik <jeff@garzik.org> | 2006-04-12 18:11:23 -0400 |
| commit | 43f2f10444c008296cc8de68a72fd87b33b50452 (patch) | |
| tree | 4b0268f07e4478e844b4f59f868bd0e2fbb0baed /drivers/net | |
| parent | 94843566d7119e049a72618a3c939d5c2be022c7 (diff) | |
| download | talos-obmc-linux-43f2f10444c008296cc8de68a72fd87b33b50452.tar.gz talos-obmc-linux-43f2f10444c008296cc8de68a72fd87b33b50452.zip | |
[PATCH] sky2: bad memory reference on dual port cards
Sky2 driver will oops referencing bad memory if used on
a dual port card. The problem is accessing past end of
MIB counter space.
Applies for both 2.6.17 and 2.6.16 (with fuzz)
Signed-off-by: Stephen Hemminger <shemminger@osdl.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Diffstat (limited to 'drivers/net')
| -rw-r--r-- | drivers/net/sky2.c | 4 | ||||
| -rw-r--r-- | drivers/net/sky2.h | 2 |
2 files changed, 3 insertions, 3 deletions
diff --git a/drivers/net/sky2.c b/drivers/net/sky2.c index 4272e47258df..67b0eab16589 100644 --- a/drivers/net/sky2.c +++ b/drivers/net/sky2.c @@ -577,8 +577,8 @@ static void sky2_mac_init(struct sky2_hw *hw, unsigned port) reg = gma_read16(hw, port, GM_PHY_ADDR); gma_write16(hw, port, GM_PHY_ADDR, reg | GM_PAR_MIB_CLR); - for (i = 0; i < GM_MIB_CNT_SIZE; i++) - gma_read16(hw, port, GM_MIB_CNT_BASE + 8 * i); + for (i = GM_MIB_CNT_BASE; i <= GM_MIB_CNT_END; i += 4) + gma_read16(hw, port, i); gma_write16(hw, port, GM_PHY_ADDR, reg); /* transmit control */ diff --git a/drivers/net/sky2.h b/drivers/net/sky2.h index 62532b4e45c5..89dd18cd12f0 100644 --- a/drivers/net/sky2.h +++ b/drivers/net/sky2.h @@ -1375,7 +1375,7 @@ enum { GM_PHY_ADDR = 0x0088, /* 16 bit r/w GPHY Address Register */ /* MIB Counters */ GM_MIB_CNT_BASE = 0x0100, /* Base Address of MIB Counters */ - GM_MIB_CNT_SIZE = 256, + GM_MIB_CNT_END = 0x025C, /* Last MIB counter */ }; |
