diff options
Diffstat (limited to 'drivers/staging/kpc2000/kpc_dma/dma.c')
| -rw-r--r-- | drivers/staging/kpc2000/kpc_dma/dma.c | 9 |
1 files changed, 4 insertions, 5 deletions
diff --git a/drivers/staging/kpc2000/kpc_dma/dma.c b/drivers/staging/kpc2000/kpc_dma/dma.c index 51a4dd534a0d..452a3f7c835d 100644 --- a/drivers/staging/kpc2000/kpc_dma/dma.c +++ b/drivers/staging/kpc2000/kpc_dma/dma.c @@ -1,4 +1,4 @@ -/* SPDX-License-Identifier: GPL-2.0+ */ +// SPDX-License-Identifier: GPL-2.0+ #include <linux/init.h> #include <linux/module.h> #include <linux/types.h> @@ -97,11 +97,10 @@ int setup_dma_engine(struct kpc_dma_device *eng, u32 desc_cnt) if (WARN(!(caps & ENG_CAP_PRESENT), "%s() called for DMA Engine at %p which isn't present in hardware!\n", __func__, eng)) return -ENXIO; - if (caps & ENG_CAP_DIRECTION) { + if (caps & ENG_CAP_DIRECTION) eng->dir = DMA_FROM_DEVICE; - } else { + else eng->dir = DMA_TO_DEVICE; - } eng->desc_pool_cnt = desc_cnt; eng->desc_pool = dma_pool_create("KPC DMA Descriptors", &eng->pldev->dev, sizeof(struct kpc_dma_descriptor), DMA_DESC_ALIGNMENT, 4096); @@ -236,7 +235,7 @@ int count_descriptors_available(struct kpc_dma_device *eng) struct kpc_dma_descriptor *cur = eng->desc_next; while (cur != eng->desc_completed) { - BUG_ON(cur == NULL); + BUG_ON(!cur); count++; cur = cur->Next; } |