If we check an index against array bounds, we should do so before
accessing the array and not afterwards.
Signed-off-by: Heinrich Schuchardt <xypron.g...@gmx.de>
---
board/micronas/vct/scc.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/board/micronas/vct/scc.c b/board/micronas/vct/scc.c
index 0d33cc4c28..8dbf4100e7 100644
--- a/board/micronas/vct/scc.c
+++ b/board/micronas/vct/scc.c
@@ -524,12 +524,14 @@ int scc_setup_dma(enum scc_id id, u32 buffer_tag,
struct scc_dma_state *dma_state;
int return_value = 0;
union scc_dma_cfg dma_cfg;
- u32 *buffer_tag_list = scc_descriptor_table[id].buffer_tag_list;
+ u32 *buffer_tag_list;
u32 tag_count, t, t_valid;
if ((id >= SCC_MAX) || (id < 0))
return -EINVAL;
+ buffer_tag_list = scc_descriptor_table[id].buffer_tag_list;
+
/* if the register is only configured by hw, cannot write! */
if (1 == scc_descriptor_table[id].hw_dma_cfg)
return -EACCES;
--
2.16.2
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