This fixes a regression from
commit 5ed0bdf21a85d78e04f89f15ccf227562177cbd9
Author: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Date: Wed Jul 16 21:05:06 2014 +0000
drm: i915: Use nsec based interfaces
that made a negative timeout return immediately rather than the
previously defined behaviour of waiting indefinitely.
Signed-off-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
Cc: Daniel Vetter <daniel.vetter@xxxxxxxx>
Cc: Ben Widawsky <benjamin.widawsky@xxxxxxxxx>
Cc: Kristian Høgsberg <krh@xxxxxxxxxxxxx>
Cc: stable@xxxxxxxxxxxxxxx
---
drivers/gpu/drm/i915/i915_gem.c | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index 0cb858269be9..9d0df4d85693 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -2957,9 +2957,9 @@ i915_gem_wait_ioctl(struct drm_device *dev, void *data, struct drm_file *file)
req = obj->last_read_req;
/* Do this after OLR check to make sure we make forward progress polling
- * on this IOCTL with a timeout <=0 (like busy ioctl)
+ * on this IOCTL with a timeout == 0 (like busy ioctl)
*/
- if (args->timeout_ns <= 0) {
+ if (args->timeout_ns == 0) {
ret = -ETIME;
goto out;
}
@@ -2969,7 +2969,8 @@ i915_gem_wait_ioctl(struct drm_device *dev, void *data, struct drm_file *file)
i915_gem_request_reference(req);
mutex_unlock(&dev->struct_mutex);
- ret = __i915_wait_request(req, reset_counter, true, &args->timeout_ns,
+ ret = __i915_wait_request(req, reset_counter, true,
+ args->timeout_ns>0 ? &args->timeout_ns : NULL,
file->driver_priv);
mutex_lock(&dev->struct_mutex);
i915_gem_request_unreference(req);
--
2.1.4
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