Greg Kroah-Hartman
598cf27219
Link: https://lore.kernel.org/r/20260217200002.683975158@linuxfoundation.org Tested-by: Florian Fainelli <florian.fainelli@broadcom.com> Tested-by: Takeshi Ogasawara <takeshi.ogasawara@futuring-girl.com> Tested-by: Peter Schneider <pschneider1968@googlemail.com> Tested-by: Jon Hunter <jonathanh@nvidia.com> Tested-by: Salvatore Bonaccorso <carnil@debian.org> Tested-by: Brett A C Sheffield <bacs@librecast.net> Tested-by: Mark Brown <broonie@kernel.org> Tested-by: Luna Jernberg <droidbittin@gmail.com> Tested-by: Ronald Warsow <rwarsow@gmx.de> Tested-by: Justin M. Forbes <jforbes@fedoraproject.org> Tested-by: Ron Economos <re@w6rz.net> Tested-by: Miguel Ojeda <ojeda@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
36 lines
866 B
C
36 lines
866 B
C
// SPDX-License-Identifier: GPL-2.0-only
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#include <linux/export.h>
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#include <linux/limits.h>
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#include <linux/minmax.h>
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#include <linux/module.h>
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#include <drm/drm_print.h>
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#include "drm_sysfb_helper.h"
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int drm_sysfb_get_validated_int(struct drm_device *dev, const char *name,
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u64 value, u32 max)
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{
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if (value > min(max, INT_MAX)) {
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drm_warn(dev, "%s of %llu exceeds maximum of %u\n", name, value, max);
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return -EINVAL;
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}
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return value;
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}
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EXPORT_SYMBOL(drm_sysfb_get_validated_int);
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int drm_sysfb_get_validated_int0(struct drm_device *dev, const char *name,
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u64 value, u32 max)
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{
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if (!value) {
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drm_warn(dev, "%s of 0 not allowed\n", name);
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return -EINVAL;
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}
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return drm_sysfb_get_validated_int(dev, name, value, max);
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}
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EXPORT_SYMBOL(drm_sysfb_get_validated_int0);
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MODULE_DESCRIPTION("Helpers for DRM sysfb drivers");
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MODULE_LICENSE("GPL");
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