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62 lines
2.2 KiB
Diff
62 lines
2.2 KiB
Diff
From 7f3b76a330d04d411cd30a399cd94a16942011f9 Mon Sep 17 00:00:00 2001
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From: Colin Ian King <colin.king@canonical.com>
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Date: Fri, 8 Sep 2017 15:05:04 +0100
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Subject: [PATCH 192/277] drm/vc4: clean up error handling on devm_kzalloc
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failure
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The current error handling when devm_kzalloc fails performs a
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non-null check on connector which is redundant because connector
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is null at that failure point. Once this is removed, make the
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failure path into a trivial -ENOMEM return to clean up the
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error handling. Also remove need to initialize connector to NULL.
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Detected by CoverityScan CID#1339527 ("Logically dead code")
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Signed-off-by: Colin Ian King <colin.king@canonical.com>
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Signed-off-by: Eric Anholt <eric@anholt.net>
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Reviewed-by: Eric Anholt <eric@anholt.net>
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Link: https://patchwork.freedesktop.org/patch/msgid/20170908140504.1340-1-colin.king@canonical.com
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(cherry picked from commit 5663077a56804890506c913b3ca9fee78764f8b3)
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---
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drivers/gpu/drm/vc4/vc4_hdmi.c | 15 +++------------
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1 file changed, 3 insertions(+), 12 deletions(-)
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diff --git a/drivers/gpu/drm/vc4/vc4_hdmi.c b/drivers/gpu/drm/vc4/vc4_hdmi.c
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index 8f71157a2b06..0b2088264039 100644
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--- a/drivers/gpu/drm/vc4/vc4_hdmi.c
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+++ b/drivers/gpu/drm/vc4/vc4_hdmi.c
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@@ -309,16 +309,13 @@ static const struct drm_connector_helper_funcs vc4_hdmi_connector_helper_funcs =
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static struct drm_connector *vc4_hdmi_connector_init(struct drm_device *dev,
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struct drm_encoder *encoder)
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{
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- struct drm_connector *connector = NULL;
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+ struct drm_connector *connector;
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struct vc4_hdmi_connector *hdmi_connector;
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- int ret = 0;
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hdmi_connector = devm_kzalloc(dev->dev, sizeof(*hdmi_connector),
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GFP_KERNEL);
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- if (!hdmi_connector) {
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- ret = -ENOMEM;
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- goto fail;
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- }
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+ if (!hdmi_connector)
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+ return ERR_PTR(-ENOMEM);
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connector = &hdmi_connector->base;
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hdmi_connector->encoder = encoder;
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@@ -336,12 +333,6 @@ static struct drm_connector *vc4_hdmi_connector_init(struct drm_device *dev,
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drm_mode_connector_attach_encoder(connector, encoder);
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return connector;
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-
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- fail:
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- if (connector)
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- vc4_hdmi_connector_destroy(connector);
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-
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- return ERR_PTR(ret);
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}
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static void vc4_hdmi_encoder_destroy(struct drm_encoder *encoder)
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--
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2.16.1
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