@@ -196,7 +196,7 @@ av_cold struct FFIIRFilterCoeffs* ff_iir_filter_init_coeffs(void *avc,

         return c;

 init_fail:

-    ff_iir_filter_free_coeffs(c);

+    ff_iir_filter_free_coeffsp(&c);

     return NULL;

 }

@@ -304,13 +304,14 @@ av_cold void ff_iir_filter_free_state(struct FFIIRFilterState *state)

     av_free(state);

 }

-av_cold void ff_iir_filter_free_coeffs(struct FFIIRFilterCoeffs *coeffs)

+av_cold void ff_iir_filter_free_coeffsp(struct FFIIRFilterCoeffs **coeffsp)

 {

+    struct FFIIRFilterCoeffs *coeffs = *coeffsp;

     if(coeffs){

-        av_free(coeffs->cx);

-        av_free(coeffs->cy);

+        av_freep(&coeffs->cx);

+        av_freep(&coeffs->cy);

     }

-    av_free(coeffs);

+    av_freep(coeffsp);

 }

 void ff_iir_filter_init(FFIIRFilterContext *f) {

@@ -347,7 +348,7 @@ int main(void)

     for (i = 0; i < SIZE; i++)

         printf("%6d %6d\n", x[i], y[i]);

-    ff_iir_filter_free_coeffs(fcoeffs);

+    ff_iir_filter_free_coeffsp(&fcoeffs);

     ff_iir_filter_free_state(fstate);

     return 0;

 }

@@ -104,7 +104,7 @@ struct FFIIRFilterState* ff_iir_filter_init_state(int order);

  *

  * @param coeffs pointer allocated with ff_iir_filter_init_coeffs()

  */

-void ff_iir_filter_free_coeffs(struct FFIIRFilterCoeffs *coeffs);

+void ff_iir_filter_free_coeffsp(struct FFIIRFilterCoeffs **coeffs);

 /**

  * Free filter state.

@@ -138,7 +138,7 @@ void ff_psy_preprocess(struct FFPsyPreprocessContext *ctx, float **audio, int ch

 av_cold void ff_psy_preprocess_end(struct FFPsyPreprocessContext *ctx)

 {

     int i;

-    ff_iir_filter_free_coeffs(ctx->fcoeffs);

+    ff_iir_filter_free_coeffsp(&ctx->fcoeffs);

     if (ctx->fstate)

         for (i = 0; i < ctx->avctx->channels; i++)

             ff_iir_filter_free_state(ctx->fstate[i]);