Re: [PATCH] lkdtm: use the return value of strim()

From: Greg Kroah-Hartman
Date: Tue Aug 22 2023 - 08:03:53 EST

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In reply to: Heiko Carstens: "Re: [PATCH] lkdtm: use the return value of strim()"
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On Thu, Aug 17, 2023 at 10:21:17PM +0800, GONG, Ruiqi wrote:
> From: "GONG, Ruiqi" <gongruiqi1@xxxxxxxxxx>
>
> Make use of the return value of strim() to achieve left-trim as well as
> right-trim, which prevents the following unusual fail case:
>
> # echo " EXCEPTION" > /sys/kernel/debug/provoke-crash/DIRECT
> sh: write error: Invalid argument

And that is correct, don't use leading whitespace, the kernel is not
there to parse it away :)

thanks,

greg k-h

Next message: Andy Shevchenko: "Re: [PATCH v3] Currently if the SoC needs pinctrl to switch the SCL and SDA from the I2C function to GPIO function, the recovery won't work."
Previous message: Andy Shevchenko: "Re: [PATCH v3] Currently if the SoC needs pinctrl to switch the SCL and SDA from the I2C function to GPIO function, the recovery won't work."
In reply to: Heiko Carstens: "Re: [PATCH] lkdtm: use the return value of strim()"
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