Patch "drm/amdgpu: initialize amdgpu_cgs_acpi_eval_object result value" has been added to the 4.6-stable tree
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This is a note to let you know that I've just added the patch titled
drm/amdgpu: initialize amdgpu_cgs_acpi_eval_object result value
to the 4.6-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
drm-amdgpu-initialize-amdgpu_cgs_acpi_eval_object-result-value.patch
and it can be found in the queue-4.6 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree, please let <[email protected]> know about it.
Quoted 1 line
From
29b9c528b8c295911e8b1e515273e89a2b7fa2d8Mon Sep 17 00:00:00 2001
From: Nicolas Iooss <[email protected]>
Date: Sat, 18 Jun 2016 22:55:00 +0200
Subject: drm/amdgpu: initialize amdgpu_cgs_acpi_eval_object result value
From: Nicolas Iooss <[email protected]>
commit 29b9c528b8c295911e8b1e515273e89a2b7fa2d8 upstream.
amdgpu_cgs_acpi_eval_object() returned the value of variable "result" without initializing it first.
This bug has been found by compiling the kernel with clang. The compiler complained:
drivers/gpu/drm/amd/amdgpu/amdgpu_cgs.c:972:14: error: variable
'result' is used uninitialized whenever 'for' loop exits because its
condition is false [-Werror,-Wsometimes-uninitialized]
for (i = 0; i < count; i++) {
^~~~~~~~~
drivers/gpu/drm/amd/amdgpu/amdgpu_cgs.c:1011:9: note: uninitialized
use occurs here
return result;
^~~~~~
drivers/gpu/drm/amd/amdgpu/amdgpu_cgs.c:972:14: note: remove the
condition if it is always true
for (i = 0; i < count; i++) {
^~~~~~~~~
drivers/gpu/drm/amd/amdgpu/amdgpu_cgs.c:864:12: note: initialize the
variable 'result' to silence this warning
int result;
^
= 0function")
--- drivers/gpu/drm/amd/amdgpu/amdgpu_cgs.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
drivers/gpu/drm/amd/amdgpu/amdgpu_cgs.c +1 -1
@@ -880,7 +880,7 @@ static int amdgpu_cgs_acpi_eval_object(vstruct cgs_acpi_method_argument *argument =NULL ;uint32_t i, count;acpi_status status; -int result; +int result =0 ;uint32_t func_no =0xFFFFFFFF ; handle =ACPI_HANDLE (&adev->pdev->dev);
Patches currently in stable-queue which might be from [email protected] are
queue-4.6/drm-amdgpu-initialize-amdgpu_cgs_acpi_eval_object-result-value.patch