[PATCH] vgaarb: fix typo deference when copying from userspace

From: Tiago Vignatti
Date: Tue Jan 12 2010 - 13:13:55 EST

From: Brad Spengler <spender@xxxxxxxxxxxxxx>

libpciaccess is not triggering such code though.

Signed-off-by: Tiago Vignatti <tiago.vignatti@xxxxxxxxx>
Andy Getzendanner tried to fix this, but he seems did a wrong approach:

Andy: please test (and put your tag review!) this one instead. Thanks.

drivers/gpu/vga/vgaarb.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/drivers/gpu/vga/vgaarb.c b/drivers/gpu/vga/vgaarb.c
index 1ac0c93..2f6cf69 100644
--- a/drivers/gpu/vga/vgaarb.c
+++ b/drivers/gpu/vga/vgaarb.c
@@ -961,7 +961,7 @@ static ssize_t vga_arb_write(struct file *file, const char __user * buf,
remaining -= 7;
pr_devel("client 0x%p called 'target'\n", priv);
/* if target is default */
- if (!strncmp(buf, "default", 7))
+ if (!strncmp(curr_pos, "default", 7))
pdev = pci_dev_get(vga_default_device());
else {
if (!vga_pci_str_to_vars(curr_pos, remaining,

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