On Tue 10 Apr 15:25 PDT 2018, Alex Elder wrote:
> If there is at least one entry in the partition table, but no global
> entry, the qcom_smem_set_global_partition() should return an error
> just like it does if there are no partition table entries.
>
> It turns out the function still returns an error in this case, but
> it waits to do so until it has mistakenly treated the last entry in
> the table as if it were the global entry found.
>
> Fix the function to return immediately if no global entry is found
> in the table.
>
> Signed-off-by: Alex Elder <elder@xxxxxxxxxx>
Reviewed-by: Bjorn Andersson <bjorn.andersson@xxxxxxxxxx>
Regards,
Bjorn
> ---
> drivers/soc/qcom/smem.c | 9 ++++++---
> 1 file changed, 6 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/soc/qcom/smem.c b/drivers/soc/qcom/smem.c
> index 0ed263055988..6e42599b70d4 100644
> --- a/drivers/soc/qcom/smem.c
> +++ b/drivers/soc/qcom/smem.c
> @@ -698,9 +698,10 @@ static u32 qcom_smem_get_item_count(struct qcom_smem *smem)
> static int qcom_smem_set_global_partition(struct qcom_smem *smem)
> {
> struct smem_partition_header *header;
> - struct smem_ptable_entry *entry = NULL;
> + struct smem_ptable_entry *entry;
> struct smem_ptable *ptable;
> u32 host0, host1, size;
> + bool found = false;
> int i;
>
> ptable = qcom_smem_get_ptable(smem);
> @@ -712,11 +713,13 @@ static int qcom_smem_set_global_partition(struct qcom_smem *smem)
> host0 = le16_to_cpu(entry->host0);
> host1 = le16_to_cpu(entry->host1);
>
> - if (host0 == SMEM_GLOBAL_HOST && host0 == host1)
> + if (host0 == SMEM_GLOBAL_HOST && host0 == host1) {
> + found = true;
> break;
> + }
> }
>
> - if (!entry) {
> + if (!found) {
> dev_err(smem->dev, "Missing entry for global partition\n");
> return -EINVAL;
> }
> --
> 2.14.1
>
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