From mboxrd@z Thu Jan 1 00:00:00 1970 From: Neil Armstrong Date: Tue, 13 Mar 2018 09:36:03 +0000 Subject: Re: [PATCH 3/3] drm/meson: Fix some error handling paths in 'meson_drv_bind_master()' Message-Id: List-Id: References: In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: Christophe JAILLET , airlied@linux.ie, carlo@caione.org, khilman@baylibre.com Cc: linux-amlogic@lists.infradead.org, kernel-janitors@vger.kernel.org, linux-arm-kernel@lists.infradead.org, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org On 12/03/2018 21:15, Christophe JAILLET wrote: > If one of these functions fail, we whould free 'drm', as alreadry done in > the other error handling paths, below and above. > > Fixes: bbbe775ec5b5 ("drm: Add support for Amlogic Meson Graphic Controller") > Signed-off-by: Christophe JAILLET > --- > drivers/gpu/drm/meson/meson_drv.c | 24 ++++++++++++++++-------- > 1 file changed, 16 insertions(+), 8 deletions(-) > > diff --git a/drivers/gpu/drm/meson/meson_drv.c b/drivers/gpu/drm/meson/meson_drv.c > index 6ee3dd7fa450..3baceb744beb 100644 > --- a/drivers/gpu/drm/meson/meson_drv.c > +++ b/drivers/gpu/drm/meson/meson_drv.c > @@ -189,35 +189,43 @@ static int meson_drv_bind_master(struct device *dev, bool has_components) > > res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "vpu"); > regs = devm_ioremap_resource(dev, res); > - if (IS_ERR(regs)) > - return PTR_ERR(regs); > + if (IS_ERR(regs)) { > + ret = PTR_ERR(regs); > + goto free_drm; > + } > > priv->io_base = regs; > > res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "hhi"); > /* Simply ioremap since it may be a shared register zone */ > regs = devm_ioremap(dev, res->start, resource_size(res)); > - if (!regs) > - return -EADDRNOTAVAIL; > + if (!regs) { > + ret = -EADDRNOTAVAIL; > + goto free_drm; > + } > > priv->hhi = devm_regmap_init_mmio(dev, regs, > &meson_regmap_config); > if (IS_ERR(priv->hhi)) { > dev_err(&pdev->dev, "Couldn't create the HHI regmap\n"); > - return PTR_ERR(priv->hhi); > + ret = PTR_ERR(priv->hhi); > + goto free_drm; > } > > res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "dmc"); > /* Simply ioremap since it may be a shared register zone */ > regs = devm_ioremap(dev, res->start, resource_size(res)); > - if (!regs) > - return -EADDRNOTAVAIL; > + if (!regs) { > + ret = -EADDRNOTAVAIL; > + goto free_drm; > + } > > priv->dmc = devm_regmap_init_mmio(dev, regs, > &meson_regmap_config); > if (IS_ERR(priv->dmc)) { > dev_err(&pdev->dev, "Couldn't create the DMC regmap\n"); > - return PTR_ERR(priv->dmc); > + ret = PTR_ERR(priv->dmc); > + goto free_drm; > } > > priv->vsync_irq = platform_get_irq(pdev, 0); > Acked-by: Neil Armstrong Thanks, Neil