linux-kernel - Re: [PATCH] habanalabs: Fix a loop in gaudi_extract_ecc

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Message-ID: <CAFCwf12iuz-q8U7_VEJvxKZpzfauKASjMDHOk7HMncuBnAyo4w@mail.gmail.com>
Date:   Wed, 5 Aug 2020 13:20:02 +0300
From:   Oded Gabbay <oded.gabbay@...il.com>
To:     Dan Carpenter <dan.carpenter@...cle.com>
Cc:     Arnd Bergmann <arnd@...db.de>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Omer Shpigelman <oshpigelman@...ana.ai>,
        Ofir Bitton <obitton@...ana.ai>,
        Tomer Tayar <ttayar@...ana.ai>,
        "Linux-Kernel@...r. Kernel. Org" <linux-kernel@...r.kernel.org>,
        kernel-janitors@...r.kernel.org
Subject: Re: [PATCH] habanalabs: Fix a loop in gaudi_extract_ecc_info()

On Wed, Aug 5, 2020 at 12:51 PM Dan Carpenter <dan.carpenter@...cle.com> wrote:
>
> The condition was reversed.  It should have been less than instead of
> greater than.  The result is that we never enter the loop.
>
> Fixes: fcc6a4e60678 ("habanalabs: Extract ECC information from FW")
> Signed-off-by: Dan Carpenter <dan.carpenter@...cle.com>
> ---
>  drivers/misc/habanalabs/gaudi/gaudi.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/misc/habanalabs/gaudi/gaudi.c b/drivers/misc/habanalabs/gaudi/gaudi.c
> index 00a0a7238d81..de2f81b80ced 100644
> --- a/drivers/misc/habanalabs/gaudi/gaudi.c
> +++ b/drivers/misc/habanalabs/gaudi/gaudi.c
> @@ -5215,7 +5215,7 @@ static int gaudi_extract_ecc_info(struct hl_device *hdev,
>         *memory_wrapper_idx = 0xFF;
>
>         /* Iterate through memory wrappers, a single bit must be set */
> -       for (i = 0 ; i > num_mem_regs ; i++) {
> +       for (i = 0 ; i < num_mem_regs ; i++) {
>                 err_addr += i * 4;
>                 err_word = RREG32(err_addr);
>                 if (err_word) {
> --
> 2.27.0
>
This patch is:
Reviewed-by: Oded Gabbay <oded.gabbay@...il.com>

Thanks!
Applied to -fixes