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Message-Id: <20250717-sti-rework-v1-1-46d516fb1ebb@gmail.com> Date: Thu, 17 Jul 2025 21:15:32 +0200 From: Raphael Gallais-Pou <rgallaispou@...il.com> To: Alain Volmat <alain.volmat@...s.st.com>, Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>, Maxime Ripard <mripard@...nel.org>, Thomas Zimmermann <tzimmermann@...e.de>, David Airlie <airlied@...il.com>, Simona Vetter <simona@...ll.ch>, Patrice Chotard <patrice.chotard@...s.st.com>, Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>, Conor Dooley <conor+dt@...nel.org> Cc: dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org, devicetree@...r.kernel.org Subject: [PATCH 1/4] drm/sti: check dma_set_coherent_mask return value Return value for DMA allocation was not checked. Check it and return error code in case of failing. Signed-off-by: Raphael Gallais-Pou <rgallaispou@...il.com> --- drivers/gpu/drm/sti/sti_drv.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/sti/sti_drv.c b/drivers/gpu/drm/sti/sti_drv.c index 5e9332df21df0db30f10b7a6f5a41cba85c4f7ae..42f21ab91957b38cb9aef012b6ee7f4ae1683edf 100644 --- a/drivers/gpu/drm/sti/sti_drv.c +++ b/drivers/gpu/drm/sti/sti_drv.c @@ -234,8 +234,11 @@ static int sti_platform_probe(struct platform_device *pdev) struct device_node *node = dev->of_node; struct device_node *child_np; struct component_match *match = NULL; + int ret; - dma_set_coherent_mask(dev, DMA_BIT_MASK(32)); + ret = dma_set_coherent_mask(dev, DMA_BIT_MASK(32)); + if (ret) + return ret; devm_of_platform_populate(dev); -- 2.50.1
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