linux-kernel - 答复: [PATCH] macintosh: macio-adb: Fix warning comparing pointer to 0

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Date:   Thu, 17 Mar 2022 09:25:36 +0000
From:   白浩文 <baihaowen@...zu.com>
To:     Christophe Leroy <christophe.leroy@...roup.eu>,
        "benh@...nel.crashing.org" <benh@...nel.crashing.org>,
        "masahiroy@...nel.org" <masahiroy@...nel.org>,
        "adobriyan@...il.com" <adobriyan@...il.com>
CC:     "linuxppc-dev@...ts.ozlabs.org" <linuxppc-dev@...ts.ozlabs.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: 答复: [PATCH] macintosh: macio-adb: Fix warning comparing pointer to 0

Sorry, That's my fault. I've sent again.
________________________________________
发件人: Christophe Leroy <christophe.leroy@...roup.eu>
发送时间: 2022年3月17日 16:54:16
收件人: 白浩文; benh@...nel.crashing.org; masahiroy@...nel.org; adobriyan@...il.com
抄送: linuxppc-dev@...ts.ozlabs.org; linux-kernel@...r.kernel.org
主题: Re: [PATCH] macintosh: macio-adb: Fix warning comparing pointer to 0

Le 17/03/2022 à 03:30, Haowen Bai a écrit :
> Avoid pointer type value compared with 0 to make code clear.
>
> Signed-off-by: Haowen Bai <baihaowen@...zu.com>

This patch doesn't apply:

Applying patch #1606366 using "git am -s -3 -m"
Description: macintosh: macio-adb: Fix warning comparing pointer to 0
Applying: macintosh: macio-adb: Fix warning comparing pointer to 0
error: corrupt patch at line 37
error: could not build fake ancestor
Patch failed at 0001 macintosh: macio-adb: Fix warning comparing pointer
to 0
hint: Use 'git am --show-current-patch=diff' to see the failed patch
When you have resolved this problem, run "git am --continue".
If you prefer to skip this patch, run "git am --skip" instead.
To restore the original branch and stop patching, run "git am --abort".
'git am' failed with exit status 128

> ---
>   drivers/macintosh/macio-adb.c | 6 +++---
>   1 file changed, 3 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/macintosh/macio-adb.c b/drivers/macintosh/macio-adb.c
> index dc634c2..51afa46 100644
> --- a/drivers/macintosh/macio-adb.c
> +++ b/drivers/macintosh/macio-adb.c
> @@ -97,7 +97,7 @@ int macio_init(void)
>       unsigned int irq;
>
>       adbs = of_find_compatible_node(NULL, "adb", "chrp,adb0");
> -     if (adbs == 0)
> +     if (!adbs)
>               return -ENXIO;
>
>       if (of_address_to_resource(adbs, 0, &r)) {
> @@ -180,7 +180,7 @@ static int macio_send_request(struct adb_request *req, int sync)
>       req->reply_len = 0;
>
>       spin_lock_irqsave(&macio_lock, flags);
> -     if (current_req != 0) {
> +     if (current_req) {
>               last_req->next = req;
>               last_req = req;
>       } else {
> @@ -210,7 +210,7 @@ static irqreturn_t macio_adb_interrupt(int irq, void *arg)
>       spin_lock(&macio_lock);
>       if (in_8(&adb->intr.r) & TAG) {
>               handled = 1;
> -             if ((req = current_req) != 0) {
> +             req = current_req;
> +             if (req) {
>                       /* put the current request in */
>                       for (i = 0; i < req->nbytes; ++i)
>                               out_8(&adb->data[i].r, req->data[i]);