treewide: Use IS_ERR_OR_NULL over manual NULL check - refactor

[PATCH 12/61] quota: Prefer IS_ERR_OR_NULL over manual NULL check

Posted by Philipp Hahn 4 weeks, 1 day ago

Prefer using IS_ERR_OR_NULL() over using IS_ERR() and a manual NULL
check.

Change generated with coccinelle.

To: Jan Kara <jack@suse.com>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Philipp Hahn <phahn-oss@avm.de>
---
 fs/quota/quota.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/quota/quota.c b/fs/quota/quota.c
index 33bacd70758007129e0375bab44d7431195ec441..2e09fc247d0cf45b9e83a4f8a0be7ea694c8c2a1 100644
--- a/fs/quota/quota.c
+++ b/fs/quota/quota.c
@@ -965,7 +965,7 @@ SYSCALL_DEFINE4(quotactl, unsigned int, cmd, const char __user *, special,
 	else
 		drop_super_exclusive(sb);
 out:
-	if (pathp && !IS_ERR(pathp))
+	if (!IS_ERR_OR_NULL(pathp))
 		path_put(pathp);
 	return ret;
 }

-- 
2.43.0

Re: [PATCH 12/61] quota: Prefer IS_ERR_OR_NULL over manual NULL check

Posted by Jan Kara 2 weeks, 6 days ago

On Tue 10-03-26 12:48:38, Philipp Hahn wrote:
> Prefer using IS_ERR_OR_NULL() over using IS_ERR() and a manual NULL
> check.
> 
> Change generated with coccinelle.
> 
> To: Jan Kara <jack@suse.com>
> Cc: linux-kernel@vger.kernel.org
> Signed-off-by: Philipp Hahn <phahn-oss@avm.de>

Thanks for the patch but frankly I find the original variant clearer wrt
what is going on. So I prefer to keep the code as is.

								Honza

> ---
>  fs/quota/quota.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/fs/quota/quota.c b/fs/quota/quota.c
> index 33bacd70758007129e0375bab44d7431195ec441..2e09fc247d0cf45b9e83a4f8a0be7ea694c8c2a1 100644
> --- a/fs/quota/quota.c
> +++ b/fs/quota/quota.c
> @@ -965,7 +965,7 @@ SYSCALL_DEFINE4(quotactl, unsigned int, cmd, const char __user *, special,
>  	else
>  		drop_super_exclusive(sb);
>  out:
> -	if (pathp && !IS_ERR(pathp))
> +	if (!IS_ERR_OR_NULL(pathp))
>  		path_put(pathp);
>  	return ret;
>  }
> 
> -- 
> 2.43.0
> 
-- 
Jan Kara <jack@suse.com>
SUSE Labs, CR

RE: [Intel-wired-lan] [PATCH 12/61] quota: Prefer IS_ERR_OR_NULL over manual NULL check

Posted by Loktionov, Aleksandr 4 weeks ago


> -----Original Message-----
> From: Intel-wired-lan <intel-wired-lan-bounces@osuosl.org> On Behalf
> Of Philipp Hahn
> Sent: Tuesday, March 10, 2026 12:49 PM
> To: amd-gfx@lists.freedesktop.org; apparmor@lists.ubuntu.com;
> bpf@vger.kernel.org; ceph-devel@vger.kernel.org; cocci@inria.fr; dm-
> devel@lists.linux.dev; dri-devel@lists.freedesktop.org;
> gfs2@lists.linux.dev; intel-gfx@lists.freedesktop.org; intel-wired-
> lan@lists.osuosl.org; iommu@lists.linux.dev; kvm@vger.kernel.org;
> linux-arm-kernel@lists.infradead.org; linux-block@vger.kernel.org;
> linux-bluetooth@vger.kernel.org; linux-btrfs@vger.kernel.org; linux-
> cifs@vger.kernel.org; linux-clk@vger.kernel.org; linux-
> erofs@lists.ozlabs.org; linux-ext4@vger.kernel.org; linux-
> fsdevel@vger.kernel.org; linux-gpio@vger.kernel.org; linux-
> hyperv@vger.kernel.org; linux-input@vger.kernel.org; linux-
> kernel@vger.kernel.org; linux-leds@vger.kernel.org; linux-
> media@vger.kernel.org; linux-mips@vger.kernel.org; linux-mm@kvack.org;
> linux-modules@vger.kernel.org; linux-mtd@lists.infradead.org; linux-
> nfs@vger.kernel.org; linux-omap@vger.kernel.org; linux-
> phy@lists.infradead.org; linux-pm@vger.kernel.org; linux-
> rockchip@lists.infradead.org; linux-s390@vger.kernel.org; linux-
> scsi@vger.kernel.org; linux-sctp@vger.kernel.org; linux-security-
> module@vger.kernel.org; linux-sh@vger.kernel.org; linux-
> sound@vger.kernel.org; linux-stm32@st-md-mailman.stormreply.com;
> linux-trace-kernel@vger.kernel.org; linux-usb@vger.kernel.org; linux-
> wireless@vger.kernel.org; netdev@vger.kernel.org;
> ntfs3@lists.linux.dev; samba-technical@lists.samba.org; sched-
> ext@lists.linux.dev; target-devel@vger.kernel.org; tipc-
> discussion@lists.sourceforge.net; v9fs@lists.linux.dev; Philipp Hahn
> <phahn-oss@avm.de>
> Cc: Jan Kara <jack@suse.com>
> Subject: [Intel-wired-lan] [PATCH 12/61] quota: Prefer IS_ERR_OR_NULL
> over manual NULL check
> 
> Prefer using IS_ERR_OR_NULL() over using IS_ERR() and a manual NULL
> check.
> 
> Change generated with coccinelle.
> 
> To: Jan Kara <jack@suse.com>
> Cc: linux-kernel@vger.kernel.org
> Signed-off-by: Philipp Hahn <phahn-oss@avm.de>
> ---
>  fs/quota/quota.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/fs/quota/quota.c b/fs/quota/quota.c index
> 33bacd70758007129e0375bab44d7431195ec441..2e09fc247d0cf45b9e83a4f8a0be
> 7ea694c8c2a1 100644
> --- a/fs/quota/quota.c
> +++ b/fs/quota/quota.c
> @@ -965,7 +965,7 @@ SYSCALL_DEFINE4(quotactl, unsigned int, cmd, const
> char __user *, special,
>  	else
>  		drop_super_exclusive(sb);
>  out:
> -	if (pathp && !IS_ERR(pathp))
> +	if (!IS_ERR_OR_NULL(pathp))
>  		path_put(pathp);
>  	return ret;
>  }
> 
> --
> 2.43.0

Reviewed-by: Aleksandr Loktionov <aleksandr.loktionov@intel.com>