From mboxrd@z Thu Jan 1 00:00:00 1970 From: Konrad Rzeszutek Wilk Date: Thu, 26 Apr 2012 21:42:22 +0000 Subject: Re: [Xen-devel] [PATCH] drivers/video/xen-fbfront.c: add missing cleanup code Message-Id: <20120426214222.GA11289@phenom.dumpdata.com> List-Id: References: <1335088660-13219-1-git-send-email-Julia.Lawall@lip6.fr> In-Reply-To: <1335088660-13219-1-git-send-email-Julia.Lawall@lip6.fr> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: Julia Lawall , FlorianSchandinat@gmx.de Cc: Jeremy Fitzhardinge , xen-devel@lists.xensource.com, linux-kernel@vger.kernel.org, kernel-janitors@vger.kernel.org, linux-fbdev@vger.kernel.org, virtualization@lists.linux-foundation.org On Sun, Apr 22, 2012 at 11:57:40AM +0200, Julia Lawall wrote: > From: Julia Lawall > > The operations in the subsequent error-handling code appear to be also > useful here. How about doing it this way? Florian, are you OK me carrying this patch in my tree for Linus or would you prefer to do it? commit a833fb9973b47cb30d1086e73f20b62a425bcd85 Author: Julia Lawall Date: Sun Apr 22 11:57:40 2012 +0200 drivers/video/xen-fbfront.c: add missing cleanup code The operations in the subsequent error-handling code appear to be also useful here. Signed-off-by: Julia Lawall [v1: Collapse some of the error handling functions] Signed-off-by: Konrad Rzeszutek Wilk diff --git a/drivers/video/xen-fbfront.c b/drivers/video/xen-fbfront.c index cb4529c..aa42160 100644 --- a/drivers/video/xen-fbfront.c +++ b/drivers/video/xen-fbfront.c @@ -458,26 +458,31 @@ static int __devinit xenfb_probe(struct xenbus_device *dev, xenfb_init_shared_page(info, fb_info); ret = xenfb_connect_backend(dev, info); - if (ret < 0) - goto error; + if (ret < 0) { + xenbus_dev_fatal(dev, ret, "xenfb_connect_backend"); + goto error_fb; + } ret = register_framebuffer(fb_info); if (ret) { - fb_deferred_io_cleanup(fb_info); - fb_dealloc_cmap(&fb_info->cmap); - framebuffer_release(fb_info); xenbus_dev_fatal(dev, ret, "register_framebuffer"); - goto error; + goto error_fb; } info->fb_info = fb_info; xenfb_make_preferred_console(); return 0; - error_nomem: - ret = -ENOMEM; - xenbus_dev_fatal(dev, ret, "allocating device memory"); - error: +error_fb: + fb_deferred_io_cleanup(fb_info); + fb_dealloc_cmap(&fb_info->cmap); + framebuffer_release(fb_info); +error_nomem: + if (!ret) { + ret = -ENOMEM; + xenbus_dev_fatal(dev, ret, "allocating device memory"); + } +error: xenfb_remove(dev); return ret; } > > Signed-off-by: Julia Lawall > > --- > Not tested. > > drivers/video/xen-fbfront.c | 7 ++++++- > 1 file changed, 6 insertions(+), 1 deletion(-) > > diff --git a/drivers/video/xen-fbfront.c b/drivers/video/xen-fbfront.c > index cb4529c..b0bd59c 100644 > --- a/drivers/video/xen-fbfront.c > +++ b/drivers/video/xen-fbfront.c > @@ -458,8 +458,13 @@ static int __devinit xenfb_probe(struct xenbus_device *dev, > xenfb_init_shared_page(info, fb_info); > > ret = xenfb_connect_backend(dev, info); > - if (ret < 0) > + if (ret < 0) { > + fb_deferred_io_cleanup(fb_info); > + fb_dealloc_cmap(&fb_info->cmap); > + framebuffer_release(fb_info); > + xenbus_dev_fatal(dev, ret, "xenfb_connect_backend"); > goto error; > + } > > ret = register_framebuffer(fb_info); > if (ret) { > > > _______________________________________________ > Xen-devel mailing list > Xen-devel@lists.xen.org > http://lists.xen.org/xen-devel