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| author | Mikael Olsson <mikael.olsson@arm.com> | 2024-04-04 17:28:52 +0200 |
|---|---|---|
| committer | Mikael Olsson <mikael.olsson@arm.com> | 2024-04-08 11:33:31 +0200 |
| commit | d80345fa00fea2816787ff3864318382edfd4949 (patch) | |
| tree | db4fc59187b1da9ee3c0db0410572c0e9302273f /kernel/common/ethosu_buffer.c | |
| parent | b2f4a2cd2de6647c9e6d6d4db9108a81d4757e33 (diff) | |
| download | ethos-u-linux-driver-stack-d80345fa00fea2816787ff3864318382edfd4949.tar.gz | |
Add additional error logging in NPU driver
To make it easier to distinguish where an error occurred in the NPU
driver, additional logging has been added to the error cases.
Change-Id: I9d744e7adf3ba3098d456d1f3c2859aa0ce66de4
Signed-off-by: Mikael Olsson <mikael.olsson@arm.com>
Diffstat (limited to 'kernel/common/ethosu_buffer.c')
| -rw-r--r-- | kernel/common/ethosu_buffer.c | 19 |
1 files changed, 16 insertions, 3 deletions
diff --git a/kernel/common/ethosu_buffer.c b/kernel/common/ethosu_buffer.c index cf41b8d..519e270 100644 --- a/kernel/common/ethosu_buffer.c +++ b/kernel/common/ethosu_buffer.c @@ -139,12 +139,18 @@ int ethosu_buffer_create(struct device *dev, struct ethosu_buffer *buf; int ret = -ENOMEM; - if (!size) + if (!size) { + dev_err(dev, "Buffer create. Invalid zero size"); + return -EINVAL; + } buf = devm_kzalloc(dev, sizeof(*buf), GFP_KERNEL); - if (!buf) + if (!buf) { + dev_err(dev, "Buffer create. Failed to allocate struct"); + return -ENOMEM; + } buf->dev = dev; kref_init(&buf->kref); @@ -152,13 +158,20 @@ int ethosu_buffer_create(struct device *dev, buf->dma_mem = ethosu_dma_mem_alloc(dev, size); if (IS_ERR(buf->dma_mem)) { ret = PTR_ERR(buf->dma_mem); + dev_err(dev, + "Buffer create. Failed to allocate DMA memory. ret=%d", + ret); goto free_buf; } ret = anon_inode_getfd("ethosu-buffer", ðosu_buffer_fops, buf, O_RDWR | O_CLOEXEC); - if (ret < 0) + if (ret < 0) { + dev_err(dev, + "Buffer create. Failed to get file descriptor. ret=%d", + ret); goto free_dma; + } buf->file = fget(ret); buf->file->f_mode |= FMODE_LSEEK; |