Re: [PATCH] net: 80003es2lan: fix a missing check of read failure

2018-12-21 Thread Jeff Kirsher
On Thu, 2018-12-20 at 15:23 -0600, Kangjie Lu wrote: > When e1000_read_kmrn_reg_80003es2lan() fails, "kum_reg_data" is > uninitialized and may contain random value. However, it is further > used in the following execution, which will lead to undefined > behaviors. > The fix checks the failure of e1

[PATCH] net: 80003es2lan: fix a missing check of read failure

2018-12-20 Thread Kangjie Lu
When e1000_read_kmrn_reg_80003es2lan() fails, "kum_reg_data" is uninitialized and may contain random value. However, it is further used in the following execution, which will lead to undefined behaviors. The fix checks the failure of e1000_read_kmrn_reg_80003es2lan() and returns with its error code