forked from Minki/linux
drm/i915: add a helper to free the members of i915_params
Abstract the one user in anticipation of more. Set the dangling pointers to NULL while at it. Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/8637d1e5049dc003718772f19d664aeaf9540856.1545920737.git.jani.nikula@intel.com
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@ -963,17 +963,10 @@ static void i915_error_object_free(struct drm_i915_error_object *obj)
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kfree(obj);
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}
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static __always_inline void free_param(const char *type, void *x)
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{
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if (!__builtin_strcmp(type, "char *"))
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kfree(*(void **)x);
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}
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static void cleanup_params(struct i915_gpu_state *error)
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{
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#define FREE(T, x, ...) free_param(#T, &error->params.x);
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I915_PARAMS_FOR_EACH(FREE);
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#undef FREE
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i915_params_free(&error->params);
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}
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static void cleanup_uc_state(struct i915_gpu_state *error)
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@ -217,3 +217,19 @@ void i915_params_copy(struct i915_params *dest, const struct i915_params *src)
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I915_PARAMS_FOR_EACH(DUP);
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#undef DUP
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}
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static __always_inline void free_param(const char *type, void *x)
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{
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if (!__builtin_strcmp(type, "char *")) {
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kfree(*(void **)x);
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*(void **)x = NULL;
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}
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}
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/* free the allocated members, *not* the passed in params itself */
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void i915_params_free(struct i915_params *params)
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{
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#define FREE(T, x, ...) free_param(#T, ¶ms->x);
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I915_PARAMS_FOR_EACH(FREE);
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#undef FREE
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}
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@ -79,6 +79,7 @@ extern struct i915_params i915_modparams __read_mostly;
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void i915_params_dump(const struct i915_params *params, struct drm_printer *p);
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void i915_params_copy(struct i915_params *dest, const struct i915_params *src);
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void i915_params_free(struct i915_params *params);
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#endif
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