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backend/drm: handle errors when fetching DRM name/version

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These functions can fail if the FD is not a DRM device or on
memory allocation failure, for instance.
This commit is contained in:
Simon Ser 2024-04-30 09:57:28 +02:00
parent 82b4bc3f5f
commit 3aef433f97
1 changed files with 10 additions and 0 deletions
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10
backend/drm/backend.c
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@ -171,7 +171,17 @@ struct wlr_backend *wlr_drm_backend_create(struct wlr_session *session,
assert(!parent || wlr_backend_is_drm(parent));
char *name = drmGetDeviceNameFromFd2(dev->fd);
if (name == NULL) {
wlr_log_errno(WLR_ERROR, "drmGetDeviceNameFromFd2() failed");
return NULL;
}
drmVersion *version = drmGetVersion(dev->fd);
if (version == NULL) {
wlr_log_errno(WLR_ERROR, "drmGetVersion() failed");
free(name);
return NULL;
}
wlr_log(WLR_INFO, "Initializing DRM backend for %s (%s)", name, version->name);
drmFreeVersion(version);