diff options
| author | Bingbu Cao <bingbu.cao@intel.com> | 2025-12-23 15:23:03 +0800 |
|---|---|---|
| committer | Sasha Levin <sashal@kernel.org> | 2026-03-04 07:21:12 -0500 |
| commit | 4393d56a106a90493a2c718998e89b4cb98dd86f (patch) | |
| tree | 2dd5c5b7e61d6498bf87d60a40e1d9c856622440 /drivers/staging | |
| parent | 18d253f0bad2c430754a1bb3def97eae9fa01f37 (diff) | |
media: staging/ipu7: Fix the loop bound in l2 table alloc
[ Upstream commit 98cc19a353abc8b48b7d58fd7a455e09e7c3aba3 ]
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>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/staging')
| -rw-r--r-- | drivers/staging/media/ipu7/ipu7-mmu.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/staging/media/ipu7/ipu7-mmu.c b/drivers/staging/media/ipu7/ipu7-mmu.c index ded1986eb8ba..ea35cce4830a 100644 --- 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; |