diff mbox

drm/i915: Fix uninitialized return from mi_set_context

Message ID 20170214152901.20361-1-tvrtko.ursulin@linux.intel.com (mailing list archive)
State New, archived
Headers show

Commit Message

Tvrtko Ursulin Feb. 14, 2017, 3:29 p.m. UTC
From: Tvrtko Ursulin <tvrtko.ursulin@intel.com>

For some reason my compiler (and CI as well) failed to spot the
uninitialized ret in mi_set_context.

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Fixes: 73dec95e6ba3 ("drm/i915: Emit to ringbuffer directly")
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
---
 drivers/gpu/drm/i915/i915_gem_context.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

Comments

Chris Wilson Feb. 14, 2017, 3:40 p.m. UTC | #1
On Tue, Feb 14, 2017 at 03:29:01PM +0000, Tvrtko Ursulin wrote:
> From: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
> 
> For some reason my compiler (and CI as well) failed to spot the
> uninitialized ret in mi_set_context.
> 
> Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
> Fixes: 73dec95e6ba3 ("drm/i915: Emit to ringbuffer directly")
> Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
> Cc: Chris Wilson <chris@chris-wilson.co.uk>
> Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>

Ah, it was only because I don't have that redundant flush did my compile
spot the uninit ret.

Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
-Chris
Tvrtko Ursulin Feb. 14, 2017, 7:36 p.m. UTC | #2
On 14/02/2017 19:22, Patchwork wrote:
> == Series Details ==
>
> Series: drm/i915: Fix uninitialized return from mi_set_context
> URL   : https://patchwork.freedesktop.org/series/19642/
> State : success
>
> == Summary ==
>
> Series 19642v1 drm/i915: Fix uninitialized return from mi_set_context
> https://patchwork.freedesktop.org/api/1.0/series/19642/revisions/1/mbox/
>
> fi-bdw-5557u     total:252  pass:241  dwarn:0   dfail:0   fail:0   skip:11
> fi-bsw-n3050     total:252  pass:213  dwarn:0   dfail:0   fail:0   skip:39
> fi-bxt-j4205     total:252  pass:233  dwarn:0   dfail:0   fail:0   skip:19
> fi-bxt-t5700     total:83   pass:70   dwarn:0   dfail:0   fail:0   skip:12
> fi-byt-j1900     total:252  pass:225  dwarn:0   dfail:0   fail:0   skip:27
> fi-byt-n2820     total:252  pass:221  dwarn:0   dfail:0   fail:0   skip:31
> fi-hsw-4770      total:252  pass:236  dwarn:0   dfail:0   fail:0   skip:16
> fi-hsw-4770r     total:252  pass:236  dwarn:0   dfail:0   fail:0   skip:16
> fi-ilk-650       total:252  pass:202  dwarn:0   dfail:0   fail:0   skip:50
> fi-ivb-3520m     total:252  pass:234  dwarn:0   dfail:0   fail:0   skip:18
> fi-ivb-3770      total:252  pass:234  dwarn:0   dfail:0   fail:0   skip:18
> fi-kbl-7500u     total:252  pass:234  dwarn:0   dfail:0   fail:0   skip:18
> fi-skl-6260u     total:252  pass:242  dwarn:0   dfail:0   fail:0   skip:10
> fi-skl-6700hq    total:252  pass:235  dwarn:0   dfail:0   fail:0   skip:17
> fi-skl-6700k     total:252  pass:230  dwarn:4   dfail:0   fail:0   skip:18
> fi-skl-6770hq    total:252  pass:242  dwarn:0   dfail:0   fail:0   skip:10
> fi-snb-2520m     total:252  pass:224  dwarn:0   dfail:0   fail:0   skip:28
> fi-snb-2600      total:252  pass:223  dwarn:0   dfail:0   fail:0   skip:29
>
> 7b80cb5504b3b3cebaea944d35f25e27415e89a6 drm-tip: 2017y-02m-14d-14h-36m-43s UTC integration manifest
> 579751c drm/i915: Fix uninitialized return from mi_set_context

Pushed, thanks for the bug report and the review!

Regards,

Tvrtko
diff mbox

Patch

diff --git a/drivers/gpu/drm/i915/i915_gem_context.c b/drivers/gpu/drm/i915/i915_gem_context.c
index 9037356536dc..262452055563 100644
--- a/drivers/gpu/drm/i915/i915_gem_context.c
+++ b/drivers/gpu/drm/i915/i915_gem_context.c
@@ -604,7 +604,7 @@  mi_set_context(struct drm_i915_gem_request *req, u32 hw_flags)
 		i915.semaphores ?
 		INTEL_INFO(dev_priv)->num_rings - 1 :
 		0;
-	int len, ret;
+	int len;
 
 	/* w/a: If Flush TLB Invalidation Mode is enabled, driver must do a TLB
 	 * invalidation prior to MI_SET_CONTEXT. On GEN6 we don't set the value
@@ -612,7 +612,7 @@  mi_set_context(struct drm_i915_gem_request *req, u32 hw_flags)
 	 * itlb_before_ctx_switch.
 	 */
 	if (IS_GEN6(dev_priv)) {
-		ret = engine->emit_flush(req, EMIT_INVALIDATE);
+		int ret = engine->emit_flush(req, EMIT_INVALIDATE);
 		if (ret)
 			return ret;
 	}
@@ -687,7 +687,7 @@  mi_set_context(struct drm_i915_gem_request *req, u32 hw_flags)
 
 	intel_ring_advance(req, cs);
 
-	return ret;
+	return 0;
 }
 
 static int remap_l3(struct drm_i915_gem_request *req, int slice)