From: Colin Ian King colin.king@canonical.com
mainline inclusion from mainline-v5.12-rc1-dontuse commit 8f8a42ff003aaa3c1424923154c9a92f3bd4c634 category: bugfix bugzilla: 173966 CVE: NA
Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?i...
----------------------------------------------------------------------
The null check of filp->f_path.dentry->d_iname is redundant because it is an array of DNAME_INLINE_LEN chars and cannot be a null. Fix this by removing the null check.
Addresses-Coverity: ("Array compared against 0") Fixes: 04987ca1b9b6 ("net: hns3: add debugfs support for tm nodes, priority and qset info") Signed-off-by: Colin Ian King colin.king@canonical.com Reviewed-by: Jesse Brandeburg jesse.brandeburg@intel.com Link: https://lore.kernel.org/r/20210203131040.21656-1-colin.king@canonical.com Signed-off-by: Jakub Kicinski kuba@kernel.org Reviewed-by: Yongxin Li liyongxin1@huawei.com Signed-off-by: Junxin Chen chenjunxin1@huawei.com Signed-off-by: Zheng Zengkai zhengzengkai@huawei.com --- drivers/net/ethernet/hisilicon/hns3/hns3_debugfs.c | 3 --- 1 file changed, 3 deletions(-)
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_debugfs.c b/drivers/net/ethernet/hisilicon/hns3/hns3_debugfs.c index 6978304f1ac5..c5958754f939 100644 --- a/drivers/net/ethernet/hisilicon/hns3/hns3_debugfs.c +++ b/drivers/net/ethernet/hisilicon/hns3/hns3_debugfs.c @@ -494,9 +494,6 @@ static ssize_t hns3_dbg_read(struct file *filp, char __user *buffer, ssize_t size = 0; int ret = 0;
- if (!filp->f_path.dentry->d_iname) - return -EINVAL; - read_buf = kzalloc(HNS3_DBG_READ_LEN, GFP_KERNEL); if (!read_buf) return -ENOMEM;