media: staging/ipu7: Fix the loop bound in l2 table alloc

This patch fixes the incorrect loop bound in alloc_l2_pt(). When
initializing L2 page table entries, the loop was incorrectly using
ISP_L1PT_PTES instead of ISP_L2PT_PTES though the ISP_L1PT_PTES is
equal to ISP_L2PT_PTES.

Fixes: 71d81c25683a ("media: staging/ipu7: add IPU7 DMA APIs and MMU mapping")
Cc: stable@vger.kernel.org
Signed-off-by: Bingbu Cao <bingbu.cao@intel.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>

diff --git a/drivers/staging/media/ipu7/ipu7-mmu.c b/drivers/staging/media/ipu7/ipu7-mmu.c
index ded1986eb8ba37464550b3e895067db96875dd37..ea35cce4830add696644f973bdbc14ff44555d12 100644 (file)
--- a/drivers/staging/media/ipu7/ipu7-mmu.c
+++ b/drivers/staging/media/ipu7/ipu7-mmu.c
@@ -231,7 +231,7 @@ static u32 *alloc_l2_pt(struct ipu7_mmu_info *mmu_info)
 
        dev_dbg(mmu_info->dev, "alloc_l2: get_zeroed_page() = %p\n", pt);
 
-       for (i = 0; i < ISP_L1PT_PTES; i++)
+       for (i = 0; i < ISP_L2PT_PTES; i++)
                pt[i] = mmu_info->dummy_page_pteval;
 
        return pt;