diff options
Diffstat (limited to 'drivers/net/ethernet/marvell/octeontx2/af/rvu_debugfs.c')
| -rw-r--r-- | drivers/net/ethernet/marvell/octeontx2/af/rvu_debugfs.c | 17 |
1 files changed, 10 insertions, 7 deletions
diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu_debugfs.c b/drivers/net/ethernet/marvell/octeontx2/af/rvu_debugfs.c index c7fd466a0efd..a09a507369ac 100644 --- a/drivers/net/ethernet/marvell/octeontx2/af/rvu_debugfs.c +++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_debugfs.c @@ -236,10 +236,11 @@ static ssize_t rvu_dbg_lmtst_map_table_display(struct file *filp, u64 lmt_addr, val, tbl_base; int pf, vf, num_vfs, hw_vfs; void __iomem *lmt_map_base; - int index = 0, off = 0; - int bytes_not_copied; int buf_size = 10240; + size_t off = 0; + int index = 0; char *buf; + int ret; /* don't allow partial reads */ if (*ppos != 0) @@ -303,15 +304,17 @@ static ssize_t rvu_dbg_lmtst_map_table_display(struct file *filp, } off += scnprintf(&buf[off], buf_size - 1 - off, "\n"); - bytes_not_copied = copy_to_user(buffer, buf, off); + ret = min(off, count); + if (copy_to_user(buffer, buf, ret)) + ret = -EFAULT; kfree(buf); iounmap(lmt_map_base); - if (bytes_not_copied) - return -EFAULT; + if (ret < 0) + return ret; - *ppos = off; - return off; + *ppos = ret; + return ret; } RVU_DEBUG_FOPS(lmtst_map_table, lmtst_map_table_display, NULL); |