* [PATCH] drm/i915/selftests: Potential uninitialized return in live_reset_whitelist()
@ 2018-04-27 14:06 Dan Carpenter
2018-04-27 14:10 ` [Intel-gfx] " Ville Syrjälä
2018-04-27 14:11 ` Chris Wilson
0 siblings, 2 replies; 3+ messages in thread
From: Dan Carpenter @ 2018-04-27 14:06 UTC (permalink / raw)
To: Jani Nikula; +Cc: David Airlie, intel-gfx, kernel-janitors, Rodrigo Vivi
Smatch complains that "err" could be uninitialized at the end. I don't
know the code well but that seems like a reasonable warning.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
diff --git a/drivers/gpu/drm/i915/selftests/intel_workarounds.c b/drivers/gpu/drm/i915/selftests/intel_workarounds.c
index 5455b2626627..17444a3abbb9 100644
--- a/drivers/gpu/drm/i915/selftests/intel_workarounds.c
+++ b/drivers/gpu/drm/i915/selftests/intel_workarounds.c
@@ -239,7 +239,7 @@ static int live_reset_whitelist(void *arg)
struct intel_engine_cs *engine = i915->engine[RCS];
struct i915_gpu_error *error = &i915->gpu_error;
struct whitelist w;
- int err;
+ int err = 0;
/* If we reset the gpu, we should not lose the RING_NONPRIV */
^ permalink raw reply related [flat|nested] 3+ messages in thread
* Re: [Intel-gfx] [PATCH] drm/i915/selftests: Potential uninitialized return in live_reset_whitelist()
2018-04-27 14:06 [PATCH] drm/i915/selftests: Potential uninitialized return in live_reset_whitelist() Dan Carpenter
@ 2018-04-27 14:10 ` Ville Syrjälä
2018-04-27 14:11 ` Chris Wilson
1 sibling, 0 replies; 3+ messages in thread
From: Ville Syrjälä @ 2018-04-27 14:10 UTC (permalink / raw)
To: Dan Carpenter; +Cc: David Airlie, intel-gfx, kernel-janitors, Rodrigo Vivi
On Fri, Apr 27, 2018 at 05:06:16PM +0300, Dan Carpenter wrote:
> Smatch complains that "err" could be uninitialized at the end. I don't
> know the code well but that seems like a reasonable warning.
>
> Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
>
> diff --git a/drivers/gpu/drm/i915/selftests/intel_workarounds.c b/drivers/gpu/drm/i915/selftests/intel_workarounds.c
> index 5455b2626627..17444a3abbb9 100644
> --- a/drivers/gpu/drm/i915/selftests/intel_workarounds.c
> +++ b/drivers/gpu/drm/i915/selftests/intel_workarounds.c
> @@ -239,7 +239,7 @@ static int live_reset_whitelist(void *arg)
> struct intel_engine_cs *engine = i915->engine[RCS];
> struct i915_gpu_error *error = &i915->gpu_error;
> struct whitelist w;
> - int err;
> + int err = 0;
>
> /* If we reset the gpu, we should not lose the RING_NONPRIV */
Looks like this is already fixed.
commit a3997159133d56e444f0c0f56ab1ae59863912a8
Author: Gustavo A. R. Silva <gustavo@embeddedor.com>
Date: Tue Apr 24 08:15:45 2018 -0500
drm/i915/selftests: Fix uninitialized variable
--
Ville Syrjälä
Intel
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^ permalink raw reply [flat|nested] 3+ messages in thread* Re: [PATCH] drm/i915/selftests: Potential uninitialized return in live_reset_whitelist()
2018-04-27 14:06 [PATCH] drm/i915/selftests: Potential uninitialized return in live_reset_whitelist() Dan Carpenter
2018-04-27 14:10 ` [Intel-gfx] " Ville Syrjälä
@ 2018-04-27 14:11 ` Chris Wilson
1 sibling, 0 replies; 3+ messages in thread
From: Chris Wilson @ 2018-04-27 14:11 UTC (permalink / raw)
To: Dan Carpenter, Jani Nikula
Cc: David Airlie, intel-gfx, kernel-janitors, Rodrigo Vivi
Quoting Dan Carpenter (2018-04-27 15:06:16)
> Smatch complains that "err" could be uninitialized at the end. I don't
> know the code well but that seems like a reasonable warning.
>
> Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Thanks for the report, Gustavo Silva already submitted the same fixup.
commit a3997159133d56e444f0c0f56ab1ae59863912a8
Author: Gustavo A. R. Silva <gustavo@embeddedor.com>
Date: Tue Apr 24 08:15:45 2018 -0500
drm/i915/selftests: Fix uninitialized variable
There is a potential execution path in which variable err is
returned without being properly initialized previously.
Fix this by initializing variable err to 0.
Ta,
-Chris
^ permalink raw reply [flat|nested] 3+ messages in thread
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2018-04-27 14:06 [PATCH] drm/i915/selftests: Potential uninitialized return in live_reset_whitelist() Dan Carpenter
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2018-04-27 14:11 ` Chris Wilson
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