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path: root/drivers/bus/imx-weim.c
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Diffstat (limited to 'drivers/bus/imx-weim.c')
-rw-r--r--drivers/bus/imx-weim.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/bus/imx-weim.c b/drivers/bus/imx-weim.c
index 3d56ebcda720..6a94aa6a22c2 100644
--- a/drivers/bus/imx-weim.c
+++ b/drivers/bus/imx-weim.c
@@ -45,6 +45,8 @@ static const struct imx_weim_devtype imx51_weim_devtype = {
.cs_stride = 0x18,
};
+#define MAX_CS_REGS_COUNT 6
+
static const struct of_device_id weim_id_table[] = {
/* i.MX1/21 */
{ .compatible = "fsl,imx1-weim", .data = &imx1_weim_devtype, },
@@ -112,9 +114,12 @@ err:
static int __init weim_timing_setup(struct device_node *np, void __iomem *base,
const struct imx_weim_devtype *devtype)
{
- u32 cs_idx, value[devtype->cs_regs_count];
+ u32 cs_idx, value[MAX_CS_REGS_COUNT];
int i, ret;
+ if (WARN_ON(devtype->cs_regs_count > MAX_CS_REGS_COUNT))
+ return -EINVAL;
+
/* get the CS index from this child node's "reg" property. */
ret = of_property_read_u32(np, "reg", &cs_idx);
if (ret)