[PATCH v2] net: wan: Add checks for NULL. If uhdlc_priv_tsa != 1 then utdm is not initialized. And if ret != NULL then goto undo_uhdlc_init, where utdm is dereferenced. Same if dev == NULL.

[Jakub Kicinski]

On Tue, 10 Jan 2023 14:47:45 +0300 Esina Ekaterina wrote:
> Subject: [PATCH v2] net: wan: Add checks for NULL. If uhdlc_priv_tsa != 1 then utdm is not initialized. And if ret != NULL then goto undo_uhdlc_init, where utdm is dereferenced. Same if dev == NULL.
>
> Found by Linux Verification Center (linuxtesting.org) with SVACE.
> 
> Signed-off-by: Esina Ekaterina <eesina at astralinux.ru>
> 
> v2: Add check for NULL for unmap_si_regs
> ---

The format of your commit is wrong. You should make the commit message
look like this in git:

  net: wan: Add checks for NULL

  If uhdlc_priv_tsa != 1 then utdm is not initialized. 
  And if ret != NULL then goto undo_uhdlc_init, where 
  utdm is dereferenced. Same if dev == NULL.

  Found by Linux Verification Center (linuxtesting.org) with SVACE.
 
  Signed-off-by: Esina Ekaterina <eesina at astralinux.ru>
  ---
  v2: Add check for NULL for unmap_si_regs

But the first line (subject) is still not specific enough.
Refer to the bug that's being fixed, not how it's fixed.

Also no braces needed around single-line if blocks.