drm/debugfs: fix plain echo to connector "force" attribute
[ Upstream commit c704b17071
]
Using plain echo to set the "force" connector attribute fails with
-EINVAL, because echo appends a newline to the output.
Replace strcmp with sysfs_streq to also accept strings that end with a
newline.
v2: use sysfs_streq instead of stripping trailing whitespace
Signed-off-by: Michael Tretter <m.tretter@pengutronix.de>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20170817104307.17124-1-m.tretter@pengutronix.de
Signed-off-by: Sasha Levin <sashal@kernel.org>
5.4-rM2-2.2.x-imx-squashed
parent
df91fe834b
commit
238e32468e
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@ -337,13 +337,13 @@ static ssize_t connector_write(struct file *file, const char __user *ubuf,
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buf[len] = '\0';
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if (!strcmp(buf, "on"))
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if (sysfs_streq(buf, "on"))
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connector->force = DRM_FORCE_ON;
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else if (!strcmp(buf, "digital"))
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else if (sysfs_streq(buf, "digital"))
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connector->force = DRM_FORCE_ON_DIGITAL;
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else if (!strcmp(buf, "off"))
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else if (sysfs_streq(buf, "off"))
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connector->force = DRM_FORCE_OFF;
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else if (!strcmp(buf, "unspecified"))
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else if (sysfs_streq(buf, "unspecified"))
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connector->force = DRM_FORCE_UNSPECIFIED;
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else
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return -EINVAL;
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