diff options
Diffstat (limited to 'drivers/media/platform/s5p-mfc/s5p_mfc_opr.c')
| -rw-r--r-- | drivers/media/platform/s5p-mfc/s5p_mfc_opr.c | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/drivers/media/platform/s5p-mfc/s5p_mfc_opr.c b/drivers/media/platform/s5p-mfc/s5p_mfc_opr.c index 00a1d8b2a8c2..1e7250260a9a 100644 --- a/drivers/media/platform/s5p-mfc/s5p_mfc_opr.c +++ b/drivers/media/platform/s5p-mfc/s5p_mfc_opr.c @@ -37,10 +37,9 @@ void s5p_mfc_init_regs(struct s5p_mfc_dev *dev) dev->mfc_regs = s5p_mfc_init_regs_v6_plus(dev); } -int s5p_mfc_alloc_priv_buf(struct device *dev, +int s5p_mfc_alloc_priv_buf(struct device *dev, dma_addr_t base, struct s5p_mfc_priv_buf *b) { - mfc_debug(3, "Allocating priv: %zu\n", b->size); b->virt = dma_alloc_coherent(dev, b->size, &b->dma, GFP_KERNEL); @@ -50,6 +49,14 @@ int s5p_mfc_alloc_priv_buf(struct device *dev, return -ENOMEM; } + if (b->dma < base) { + mfc_err("Invaling memory configuration!\n"); + mfc_err("Allocated buffer (%pad) is lower than memory base address (%pad)\n", + &b->dma, &base); + dma_free_coherent(dev, b->size, b->virt, b->dma); + return -ENOMEM; + } + mfc_debug(3, "Allocated addr %p %pad\n", b->virt, &b->dma); return 0; } |