media: venus: hfi: fix return value check in sys_get_prop_image_version()

In case of error, the function qcom_smem_get() returns ERR_PTR()
and never returns NULL. The NULL test in the return value check
should be replaced with IS_ERR().

Fixes: d566e78dd6af ("media: venus : hfi: add venus image info into smem")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com>
Signed-off-by: Stanimir Varbanov <stanimir.varbanov@linaro.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>

diff --git a/drivers/media/platform/qcom/venus/hfi_msgs.c b/drivers/media/platform/qcom/venus/hfi_msgs.c
index d9fde66..9a2bdb0 100644 (file)
--- a/drivers/media/platform/qcom/venus/hfi_msgs.c
+++ b/drivers/media/platform/qcom/venus/hfi_msgs.c
@@ -261,7 +261,7 @@ sys_get_prop_image_version(struct device *dev,
 
        smem_tbl_ptr = qcom_smem_get(QCOM_SMEM_HOST_ANY,
                SMEM_IMG_VER_TBL, &smem_blk_sz);
-       if (smem_tbl_ptr && smem_blk_sz >= SMEM_IMG_OFFSET_VENUS + VER_STR_SZ)
+       if (!IS_ERR(smem_tbl_ptr) && smem_blk_sz >= SMEM_IMG_OFFSET_VENUS + VER_STR_SZ)
                memcpy(smem_tbl_ptr + SMEM_IMG_OFFSET_VENUS,
                       img_ver, VER_STR_SZ);
 }