media: coda: Add check for dcoda_iram_alloc

[ Upstream commit 6b80822 ]

As the coda_iram_alloc may return NULL pointer,
it should be better to check the return value
in order to avoid NULL poineter dereference,
same as the others.

Fixes: b313bcc ("[media] coda: simplify IRAM setup")
Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Sasha Levin <sashal@kernel.org>

Author: JiangJias

drivers/media/platform/coda/coda-bit.c

@@ -852,7 +852,7 @@ static void coda_setup_iram(struct coda_ctx *ctx)
 		/* Only H.264BP and H.263P3 are considered */
 		iram_info->buf_dbk_y_use = coda_iram_alloc(iram_info, w64);
 		iram_info->buf_dbk_c_use = coda_iram_alloc(iram_info, w64);
-		if (!iram_info->buf_dbk_c_use)
+		if (!iram_info->buf_dbk_y_use || !iram_info->buf_dbk_c_use)
 			goto out;
 		iram_info->axi_sram_use |= dbk_bits;
 
@@ -876,7 +876,7 @@ static void coda_setup_iram(struct coda_ctx *ctx)
 
 		iram_info->buf_dbk_y_use = coda_iram_alloc(iram_info, w128);
 		iram_info->buf_dbk_c_use = coda_iram_alloc(iram_info, w128);
-		if (!iram_info->buf_dbk_c_use)
+		if (!iram_info->buf_dbk_y_use || !iram_info->buf_dbk_c_use)
 			goto out;
 		iram_info->axi_sram_use |= dbk_bits;