From: Gilad Ben-Yossef <gilad@xxxxxxxxxxxxx> commit d574b707c873d6ef1a2a155f8cfcfecd821e9a2e upstream. Fix a memory leak on the error path of IV generation code. Signed-off-by: Gilad Ben-Yossef <gilad@xxxxxxxxxxxxx> Cc: stable@xxxxxxxxxxxxxxx # v4.19+ Signed-off-by: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- drivers/crypto/ccree/cc_ivgen.c | 9 +++------ 1 file changed, 3 insertions(+), 6 deletions(-) --- a/drivers/crypto/ccree/cc_ivgen.c +++ b/drivers/crypto/ccree/cc_ivgen.c @@ -154,9 +154,6 @@ void cc_ivgen_fini(struct cc_drvdata *dr } ivgen_ctx->pool = NULL_SRAM_ADDR; - - /* release "this" context */ - kfree(ivgen_ctx); } /*! @@ -174,10 +171,12 @@ int cc_ivgen_init(struct cc_drvdata *drv int rc; /* Allocate "this" context */ - ivgen_ctx = kzalloc(sizeof(*ivgen_ctx), GFP_KERNEL); + ivgen_ctx = devm_kzalloc(device, sizeof(*ivgen_ctx), GFP_KERNEL); if (!ivgen_ctx) return -ENOMEM; + drvdata->ivgen_handle = ivgen_ctx; + /* Allocate pool's header for initial enc. key/IV */ ivgen_ctx->pool_meta = dma_alloc_coherent(device, CC_IVPOOL_META_SIZE, &ivgen_ctx->pool_meta_dma, @@ -196,8 +195,6 @@ int cc_ivgen_init(struct cc_drvdata *drv goto out; } - drvdata->ivgen_handle = ivgen_ctx; - return cc_init_iv_sram(drvdata); out:
