linux-kernel - Re: [PATCH] platform/chrome: cros_ec

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Date:   Fri, 13 Jan 2023 21:20:56 +0000
From:   patchwork-bot+chrome-platform@...nel.org
To:     Tom Rix <trix@...hat.com>
Cc:     bleung@...omium.org, groeck@...omium.org, nathan@...nel.org,
        ndesaulniers@...gle.com, chrome-platform@...ts.linux.dev,
        linux-kernel@...r.kernel.org, llvm@...ts.linux.dev
Subject: Re: [PATCH] platform/chrome: cros_ec_lpc: initialize the buf variable

Hello:

This patch was applied to chrome-platform/linux.git (for-next)
by Tzung-Bi Shih <tzungbi@...nel.org>:

On Tue, 10 Jan 2023 14:36:11 -0500 you wrote:
> Clang static analysis reports this problem
> drivers/platform/chrome/cros_ec_lpc.c:379:13: warning: The left operand
>   of '!=' is a garbage value [core.UndefinedBinaryOperatorResult]
>     if (buf[0] != 'E' || buf[1] != 'C') {
>          ~~~~~~ ^
> 
> The check depends on the side effect of the read.  When the read fails
> or is short, a buf containing garbage could be mistaken as correct.
> 
> [...]

Here is the summary with links:
  - platform/chrome: cros_ec_lpc: initialize the buf variable
    https://git.kernel.org/chrome-platform/c/2ae3c610e7d2

You are awesome, thank you!
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