From: Dave Jones <davej@redhat.com> To: Emil Goode <emilgoode@gmail.com> Cc: swhiteho@redhat.com, cluster-devel@redhat.com, linux-kernel@vger.kernel.org, kernel-janitors@vger.kernel.org Subject: Re: [PATCH] GFS2: Return -ENOMEM only if kmalloc fails Date: Thu, 26 Apr 2012 17:19:57 -0400 [thread overview] Message-ID: <20120426211957.GA9514@redhat.com> (raw) In-Reply-To: <1335474778-6252-1-git-send-email-emilgoode@gmail.com> On Thu, Apr 26, 2012 at 11:12:58PM +0200, Emil Goode wrote: > The error variable should be assigned the value of -ENOMEM > after the NULL check and not before. > > Signed-off-by: Emil Goode <emilgoode@gmail.com> > --- > fs/gfs2/acl.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/fs/gfs2/acl.c b/fs/gfs2/acl.c > index 230eb0f..90f6328 100644 > --- a/fs/gfs2/acl.c > +++ b/fs/gfs2/acl.c > @@ -174,8 +174,8 @@ int gfs2_acl_chmod(struct gfs2_inode *ip, struct iattr *attr) > > len = posix_acl_to_xattr(acl, NULL, 0); > data = kmalloc(len, GFP_NOFS); > - error = -ENOMEM; > if (data == NULL) > + error = -ENOMEM; > goto out; > posix_acl_to_xattr(acl, data, len); > error = gfs2_xattr_acl_chmod(ip, attr, data); You missed the brackets on the if, introducing a bug that will cause it to now always fail. As 'error' gets overwritten in the successful case, there is no reason to change this afaics. Dave
WARNING: multiple messages have this Message-ID (diff)
From: Dave Jones <davej@redhat.com> To: Emil Goode <emilgoode@gmail.com> Cc: swhiteho@redhat.com, cluster-devel@redhat.com, linux-kernel@vger.kernel.org, kernel-janitors@vger.kernel.org Subject: Re: [PATCH] GFS2: Return -ENOMEM only if kmalloc fails Date: Thu, 26 Apr 2012 21:19:57 +0000 [thread overview] Message-ID: <20120426211957.GA9514@redhat.com> (raw) In-Reply-To: <1335474778-6252-1-git-send-email-emilgoode@gmail.com> On Thu, Apr 26, 2012 at 11:12:58PM +0200, Emil Goode wrote: > The error variable should be assigned the value of -ENOMEM > after the NULL check and not before. > > Signed-off-by: Emil Goode <emilgoode@gmail.com> > --- > fs/gfs2/acl.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/fs/gfs2/acl.c b/fs/gfs2/acl.c > index 230eb0f..90f6328 100644 > --- a/fs/gfs2/acl.c > +++ b/fs/gfs2/acl.c > @@ -174,8 +174,8 @@ int gfs2_acl_chmod(struct gfs2_inode *ip, struct iattr *attr) > > len = posix_acl_to_xattr(acl, NULL, 0); > data = kmalloc(len, GFP_NOFS); > - error = -ENOMEM; > if (data = NULL) > + error = -ENOMEM; > goto out; > posix_acl_to_xattr(acl, data, len); > error = gfs2_xattr_acl_chmod(ip, attr, data); You missed the brackets on the if, introducing a bug that will cause it to now always fail. As 'error' gets overwritten in the successful case, there is no reason to change this afaics. Dave
next prev parent reply other threads:[~2012-04-26 21:20 UTC|newest] Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top 2012-04-26 21:12 [PATCH] GFS2: Return -ENOMEM only if kmalloc fails Emil Goode 2012-04-26 21:12 ` Emil Goode 2012-04-26 21:14 ` Oliver Neukum 2012-04-26 21:14 ` Oliver Neukum 2012-04-26 21:30 ` Emil Goode 2012-04-26 21:30 ` Emil Goode 2012-04-26 21:19 ` Dave Jones [this message] 2012-04-26 21:19 ` Dave Jones
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