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| author | Jani Nikula <jani.nikula@intel.com> | 2023-05-30 12:08:23 +0300 |
|---|---|---|
| committer | Jani Nikula <jani.nikula@intel.com> | 2023-06-02 13:23:30 +0300 |
| commit | d60d2bccae65e9f85016ca4d6f6ad169c86b1024 (patch) | |
| tree | d00940a743e516e0767a33dd568ed5156a260ca7 /drivers/gpu/drm/drm_edid.c | |
| parent | a036aa1f01e7d1321859613d85570720f041cb07 (diff) | |
| download | linux-d60d2bccae65e9f85016ca4d6f6ad169c86b1024.tar.xz | |
drm/edid: make drm_edid_duplicate() safe to call with NULL parameter
It's a bit tedious to check for NULL before calling
drm_edid_duplicate(). Make it handle NULL parameter graciously.
Reviewed-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/1ae8923d39a5abd0260fdf7f9cc54c5e046e70d3.1685437501.git.jani.nikula@intel.com
Diffstat (limited to 'drivers/gpu/drm/drm_edid.c')
| -rw-r--r-- | drivers/gpu/drm/drm_edid.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c index 941f3d53a701..e0dbd9140726 100644 --- a/drivers/gpu/drm/drm_edid.c +++ b/drivers/gpu/drm/drm_edid.c @@ -2881,6 +2881,9 @@ EXPORT_SYMBOL(drm_edid_read_switcheroo); */ struct edid *drm_edid_duplicate(const struct edid *edid) { + if (!edid) + return NULL; + return kmemdup(edid, edid_size(edid), GFP_KERNEL); } EXPORT_SYMBOL(drm_edid_duplicate); |