6.6-stable review patch. If anyone has any objections, please let me know.
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From: Andy Shevchenko andriy.shevchenko@linux.intel.com
[ Upstream commit 09965a142078080fe7807bab0f6f1890cb5987a4 ]
Commit 2545c1c948a6 ("auxdisplay: Move hwidth and bwidth to struct hd44780_common") makes charlcd_alloc() argument-less effectively dropping the single allocation for the struct charlcd_priv object along with the driver specific one. Restore that behaviour here.
Signed-off-by: Andy Shevchenko andriy.shevchenko@linux.intel.com Reviewed-by: Geert Uytterhoeven geert@linux-m68k.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/auxdisplay/charlcd.c | 5 +++-- drivers/auxdisplay/charlcd.h | 5 +++-- drivers/auxdisplay/hd44780.c | 2 +- drivers/auxdisplay/lcd2s.c | 2 +- drivers/auxdisplay/panel.c | 2 +- 5 files changed, 9 insertions(+), 7 deletions(-)
diff --git a/drivers/auxdisplay/charlcd.c b/drivers/auxdisplay/charlcd.c index 6d309e4971b61..e243291a7e77c 100644 --- a/drivers/auxdisplay/charlcd.c +++ b/drivers/auxdisplay/charlcd.c @@ -594,18 +594,19 @@ static int charlcd_init(struct charlcd *lcd) return 0; }
-struct charlcd *charlcd_alloc(void) +struct charlcd *charlcd_alloc(unsigned int drvdata_size) { struct charlcd_priv *priv; struct charlcd *lcd;
- priv = kzalloc(sizeof(*priv), GFP_KERNEL); + priv = kzalloc(sizeof(*priv) + drvdata_size, GFP_KERNEL); if (!priv) return NULL;
priv->esc_seq.len = -1;
lcd = &priv->lcd; + lcd->drvdata = priv->drvdata;
return lcd; } diff --git a/drivers/auxdisplay/charlcd.h b/drivers/auxdisplay/charlcd.h index eed80063a6d20..4bbf106b2dd8a 100644 --- a/drivers/auxdisplay/charlcd.h +++ b/drivers/auxdisplay/charlcd.h @@ -49,7 +49,7 @@ struct charlcd { unsigned long y; } addr;
- void *drvdata; + void *drvdata; /* Set by charlcd_alloc() */ };
/** @@ -93,7 +93,8 @@ struct charlcd_ops { };
void charlcd_backlight(struct charlcd *lcd, enum charlcd_onoff on); -struct charlcd *charlcd_alloc(void); + +struct charlcd *charlcd_alloc(unsigned int drvdata_size); void charlcd_free(struct charlcd *lcd);
int charlcd_register(struct charlcd *lcd); diff --git a/drivers/auxdisplay/hd44780.c b/drivers/auxdisplay/hd44780.c index 8b690f59df27d..ebaf0ff518f4c 100644 --- a/drivers/auxdisplay/hd44780.c +++ b/drivers/auxdisplay/hd44780.c @@ -226,7 +226,7 @@ static int hd44780_probe(struct platform_device *pdev) if (!hdc) return -ENOMEM;
- lcd = charlcd_alloc(); + lcd = charlcd_alloc(0); if (!lcd) goto fail1;
diff --git a/drivers/auxdisplay/lcd2s.c b/drivers/auxdisplay/lcd2s.c index 6422be0dfe20e..0ecf6a9469f24 100644 --- a/drivers/auxdisplay/lcd2s.c +++ b/drivers/auxdisplay/lcd2s.c @@ -307,7 +307,7 @@ static int lcd2s_i2c_probe(struct i2c_client *i2c) if (err < 0) return err;
- lcd = charlcd_alloc(); + lcd = charlcd_alloc(0); if (!lcd) return -ENOMEM;
diff --git a/drivers/auxdisplay/panel.c b/drivers/auxdisplay/panel.c index eba04c0de7eb3..0f3999b665e70 100644 --- a/drivers/auxdisplay/panel.c +++ b/drivers/auxdisplay/panel.c @@ -835,7 +835,7 @@ static void lcd_init(void) if (!hdc) return;
- charlcd = charlcd_alloc(); + charlcd = charlcd_alloc(0); if (!charlcd) { kfree(hdc); return;