On 25/08/2020 13:47, Dan Carpenter wrote:
These comparisons should be >= instead of > to prevent reading one
element beyond the end of the gpmc_cs[] array.

Fixes: cdd6928c589a ("ARM: OMAP2+: Add device-tree support for NOR flash")
Fixes: f37e4580c409 ("ARM: OMAP2: Dynamic allocator for GPMC memory space")
Signed-off-by: Dan Carpenter <dan.carpen...@oracle.com>

Acked-by: Roger Quadros <rog...@ti.com>

---
  drivers/memory/omap-gpmc.c | 4 ++--
  1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/memory/omap-gpmc.c b/drivers/memory/omap-gpmc.c
index cd9e80748591..fd245b82163a 100644
--- a/drivers/memory/omap-gpmc.c
+++ b/drivers/memory/omap-gpmc.c
@@ -989,7 +989,7 @@ static int gpmc_cs_remap(int cs, u32 base)
        int ret;
        u32 old_base, size;
- if (cs > gpmc_cs_num) {
+       if (cs >= gpmc_cs_num) {
                pr_err("%s: requested chip-select is disabled\n", __func__);
                return -ENODEV;
        }
@@ -1024,7 +1024,7 @@ int gpmc_cs_request(int cs, unsigned long size, unsigned 
long *base)
        struct resource *res = &gpmc->mem;
        int r = -1;
- if (cs > gpmc_cs_num) {
+       if (cs >= gpmc_cs_num) {
                pr_err("%s: requested chip-select is disabled\n", __func__);
                return -ENODEV;
        }


cheers,
-roger

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