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A couple improvements for auxdisplay:

Browse Source 
- charlcd: checking for pointer reference before dereferencing.
 
   - charlcd: fixing coding style issue.
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Merge tag 'auxdisplay-for-linus-v5.16' of git://github.com/ojeda/linux

Pull auxdisplay fixes from Miguel Ojeda:
 "A couple of improvements for charlcd:

   - check pointer before dereferencing

   - fix coding style issue"

* tag 'auxdisplay-for-linus-v5.16' of git://github.com/ojeda/linux:
  auxdisplay: charlcd: checking for pointer reference before dereferencing
  auxdisplay: charlcd: fixing coding style issue
This commit is contained in:
Linus Torvalds 2021-12-28 11:46:15 -08:00
commit ecf71de775
1 changed files with 4 additions and 1 deletions
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5
drivers/auxdisplay/charlcd.c
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@ -37,7 +37,7 @@ struct charlcd_priv {
bool must_clear;
/* contains the LCD config state */
unsigned long int flags;
unsigned long flags;
/* Current escape sequence and it's length or -1 if outside */
struct {
@ -578,6 +578,9 @@ static int charlcd_init(struct charlcd *lcd)
* Since charlcd_init_display() needs to write data, we have to
* enable mark the LCD initialized just before.
*/
if (WARN_ON(!lcd->ops->init_display))
return -EINVAL;
ret = lcd->ops->init_display(lcd);
if (ret)
return ret;