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path: root/drivers/mtd/nand/fsl_upm.c
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Diffstat (limited to 'drivers/mtd/nand/fsl_upm.c')
-rw-r--r--drivers/mtd/nand/fsl_upm.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/mtd/nand/fsl_upm.c b/drivers/mtd/nand/fsl_upm.c
index d120cd8d726..071a60cb420 100644
--- a/drivers/mtd/nand/fsl_upm.c
+++ b/drivers/mtd/nand/fsl_upm.c
@@ -112,7 +112,7 @@ static void fun_select_chip(struct mtd_info *mtd, int mchip_nr)
if (mchip_nr == -1) {
chip->cmd_ctrl(mtd, NAND_CMD_NONE, 0 | NAND_CTRL_CHANGE);
- } else if (mchip_nr >= 0) {
+ } else if (mchip_nr >= 0 && mchip_nr < NAND_MAX_CHIPS) {
fun->mchip_number = mchip_nr;
chip->IO_ADDR_R = fun->io_base + fun->mchip_offsets[mchip_nr];
chip->IO_ADDR_W = chip->IO_ADDR_R;