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Commit cb43e699 authored by Sudarshan Rajagopalan's avatar Sudarshan Rajagopalan
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msm: ion: Fix crash when CP flags are none 



Fix crash when no ION content protection flags are
passed by userspace during secure cma allocation.

CRs-Fixed: 2077089
Change-Id: Id1729d00c4acafa01222e90e9abd02cce1b8e123
Signed-off-by: default avatarSudarshan Rajagopalan <sudaraja@codeaurora.org>
parent 814e5c69

drivers/staging/android/ion/ion_cma_heap.c

+6 −0
Original line number Diff line number Diff line
@@ -249,6 +249,8 @@ static void ion_secure_cma_free(struct ion_buffer *buffer) 
	struct ion_cma_buffer_info *info = buffer->priv_virt;



	source_nelems = count_set_bits(buffer->flags & ION_FLAGS_CP_MASK);

	if (!source_nelems)

		return;

	source_vm_list = kcalloc(source_nelems, sizeof(*source_vm_list),

				 GFP_KERNEL);

	if (!source_vm_list)
@@ -291,6 +293,10 @@ static int ion_secure_cma_allocate( 
	source_vm = VMID_HLOS;



	dest_nelems = count_set_bits(flags & ION_FLAGS_CP_MASK);

	if (!dest_nelems) {

		ret = -EINVAL;

		goto out;

	}

	dest_vm_list = kcalloc(dest_nelems, sizeof(*dest_vm_list), GFP_KERNEL);

	if (!dest_vm_list) {

		ret = -ENOMEM;