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path: root/drivers/auxdisplay
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Diffstat (limited to 'drivers/auxdisplay')
-rw-r--r--drivers/auxdisplay/charlcd.c5
-rw-r--r--drivers/auxdisplay/charlcd.h5
-rw-r--r--drivers/auxdisplay/hd44780.c11
-rw-r--r--drivers/auxdisplay/lcd2s.c2
-rw-r--r--drivers/auxdisplay/panel.c2
5 files changed, 13 insertions, 12 deletions
diff --git a/drivers/auxdisplay/charlcd.c b/drivers/auxdisplay/charlcd.c
index 6d309e4971b6..e243291a7e77 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 eed80063a6d2..4bbf106b2dd8 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 d56a5d508ccd..ebaf0ff518f4 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;
@@ -313,13 +313,13 @@ static int hd44780_probe(struct platform_device *pdev)
fail3:
kfree(hd);
fail2:
- kfree(lcd);
+ charlcd_free(lcd);
fail1:
kfree(hdc);
return ret;
}
-static int hd44780_remove(struct platform_device *pdev)
+static void hd44780_remove(struct platform_device *pdev)
{
struct charlcd *lcd = platform_get_drvdata(pdev);
struct hd44780_common *hdc = lcd->drvdata;
@@ -328,8 +328,7 @@ static int hd44780_remove(struct platform_device *pdev)
kfree(hdc->hd44780);
kfree(lcd->drvdata);
- kfree(lcd);
- return 0;
+ charlcd_free(lcd);
}
static const struct of_device_id hd44780_of_match[] = {
@@ -340,7 +339,7 @@ MODULE_DEVICE_TABLE(of, hd44780_of_match);
static struct platform_driver hd44780_driver = {
.probe = hd44780_probe,
- .remove = hd44780_remove,
+ .remove_new = hd44780_remove,
.driver = {
.name = "hd44780",
.of_match_table = hd44780_of_match,
diff --git a/drivers/auxdisplay/lcd2s.c b/drivers/auxdisplay/lcd2s.c
index 135831a16514..2b597f226c0c 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 eba04c0de7eb..0f3999b665e7 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;