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authorStefan Richter <stefanr@s5r6.in-berlin.de>2010-02-24 20:31:04 +0100
committerStefan Richter <stefanr@s5r6.in-berlin.de>2010-02-24 20:33:45 +0100
commit109d28152b6e9d5de64cd23e3bc08885ccb3d1ef (patch)
treeb7b8863faa05254781acfb85cc41da3eef467c6b /drivers/gpu/drm/nouveau/nouveau_dp.c
parent168cf9af699e87d5a6f44b684583714ecabb8e71 (diff)
parent60b341b778cc2929df16c0a504c91621b3c6a4ad (diff)
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Merge tag 'v2.6.33' for its firewire changes since last branch point
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Diffstat (limited to 'drivers/gpu/drm/nouveau/nouveau_dp.c')
-rw-r--r--drivers/gpu/drm/nouveau/nouveau_dp.c8
1 files changed, 7 insertions, 1 deletions
diff --git a/drivers/gpu/drm/nouveau/nouveau_dp.c b/drivers/gpu/drm/nouveau/nouveau_dp.c
index 9e2926c..f954ad9 100644
--- a/drivers/gpu/drm/nouveau/nouveau_dp.c
+++ b/drivers/gpu/drm/nouveau/nouveau_dp.c
@@ -490,7 +490,8 @@ nouveau_dp_auxch(struct nouveau_i2c_chan *auxch, int cmd, int addr,
if (!nv_wait(NV50_AUXCH_CTRL(index), 0x00010000, 0x00000000)) {
NV_ERROR(dev, "expected bit 16 == 0, got 0x%08x\n",
nv_rd32(dev, NV50_AUXCH_CTRL(index)));
- return -EBUSY;
+ ret = -EBUSY;
+ goto out;
}
udelay(400);
@@ -502,6 +503,11 @@ nouveau_dp_auxch(struct nouveau_i2c_chan *auxch, int cmd, int addr,
}
if (cmd & 1) {
+ if ((stat & NV50_AUXCH_STAT_COUNT) != data_nr) {
+ ret = -EREMOTEIO;
+ goto out;
+ }
+
for (i = 0; i < 4; i++) {
data32[i] = nv_rd32(dev, NV50_AUXCH_DATA_IN(index, i));
NV_DEBUG_KMS(dev, "rd %d: 0x%08x\n", i, data32[i]);