From: Ayoung Sim <a.sim@samsung.com>
Date: Wed, 18 Jul 2018 07:52:07 +0000 (+0900)
Subject: [COMMON] media: mfc: add the error handling
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=c55e8176a27723c16157754f8e6c968917f1c0a7;p=GitHub%2FLineageOS%2Fandroid_kernel_motorola_exynos9610.git

[COMMON] media: mfc: add the error handling

If there is no valid buffer in mask bit,
we couldn't do encoding

Change-Id: I94722a348cd6e192cd6195d6f506fc480b79145e
Signed-off-by: Ayoung Sim <a.sim@samsung.com>
---

diff --git a/drivers/media/platform/exynos/mfc/mfc_mem.c b/drivers/media/platform/exynos/mfc/mfc_mem.c
index ab157a1855eb..e9423d3743cc 100644
--- a/drivers/media/platform/exynos/mfc/mfc_mem.c
+++ b/drivers/media/platform/exynos/mfc/mfc_mem.c
@@ -225,6 +225,12 @@ int mfc_bufcon_get_daddr(struct mfc_ctx *ctx, struct mfc_buf *mfc_buf,
 		mfc_err_ctx("[BUFCON] it is not buffer container\n");
 		return -1;
 	}
+
+	if (mask == 0) {
+		mfc_err_ctx("[BUFCON] number of valid buffers is zero\n");
+		return -1;
+	}
+
 	mfc_debug(3, "[BUFCON] bufcon mask info %#x\n", mask);
 
 	for (i = 0; i < mfc_buf->num_bufs_in_batch; i++) {