On Sun, Jan 22, 2017 at 09:31:29AM +0100, SF Markus Elfring wrote:
> From: Markus Elfring <elfring@xxxxxxxxxxxxxxxxxxxxx>
> Date: Sat, 21 Jan 2017 21:23:06 +0100
>
> A local variable was set to an error code before a concrete error situation
> was detected. Thus move the corresponding assignments into if branches
> to indicate a software failure there.
>
> Signed-off-by: Markus Elfring <elfring@xxxxxxxxxxxxxxxxxxxxx>
> ---
> block/blk-throttle.c | 23 +++++++++++++----------
> 1 file changed, 13 insertions(+), 10 deletions(-)
>
> diff --git a/block/blk-throttle.c b/block/blk-throttle.c
> index 6f4c96e5f86b..51d112deb02e 100644
> --- a/block/blk-throttle.c
> +++ b/block/blk-throttle.c
> @@ -1327,27 +1327,30 @@ static ssize_t tg_set_max(struct kernfs_open_file *of,
> break;
> ctx.body += len;
>
> - ret = -EINVAL;
> p = tok;
> strsep(&p, "=");
> - if (!p || (sscanf(p, "%llu", &val) != 1 && strcmp(p, "max")))
> + if (!p || (sscanf(p, "%llu", &val) != 1 && strcmp(p, "max"))) {
> + ret = -EINVAL;
> goto out_finish;
> + }
Sorry, I don't like this patch. We know the next error if we encounter one
will be EINVAL until we change it. Your patch doesn't introduce a functual
change and doesn't improve readability, so I don't really see a point for it.
Byte,
Johannes
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Johannes Thumshirn Storage
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