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authorAndy Shevchenko <andriy.shevchenko@linux.intel.com>2022-02-23 18:47:18 +0300
committerMiguel Ojeda <ojeda@kernel.org>2022-03-03 02:30:31 +0300
commit9ed331f8a0fb674f4f06edf05a1687bf755af27b (patch)
tree58387ee9ec6cf300bcac857aa2820ebd827ade8a /drivers/auxdisplay
parent898c0a15425a5bcaa8d44bd436eae5afd2483796 (diff)
downloadlinux-9ed331f8a0fb674f4f06edf05a1687bf755af27b.tar.xz
auxdisplay: lcd2s: Use proper API to free the instance of charlcd object
While it might work, the current approach is fragile in a few ways: - whenever members in the structure are shuffled, the pointer will be wrong - the resource freeing may include more than covered by kfree() Fix this by using charlcd_free() call instead of kfree(). Fixes: 8c9108d014c5 ("auxdisplay: add a driver for lcd2s character display") Cc: Lars Poeschel <poeschel@lemonage.de> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
Diffstat (limited to 'drivers/auxdisplay')
-rw-r--r--drivers/auxdisplay/lcd2s.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/auxdisplay/lcd2s.c b/drivers/auxdisplay/lcd2s.c
index 7b9cfbbaf007..2578b2d45439 100644
--- a/drivers/auxdisplay/lcd2s.c
+++ b/drivers/auxdisplay/lcd2s.c
@@ -336,7 +336,7 @@ static int lcd2s_i2c_probe(struct i2c_client *i2c,
return 0;
fail1:
- kfree(lcd);
+ charlcd_free(lcd2s->charlcd);
return err;
}
@@ -345,7 +345,7 @@ static int lcd2s_i2c_remove(struct i2c_client *i2c)
struct lcd2s_data *lcd2s = i2c_get_clientdata(i2c);
charlcd_unregister(lcd2s->charlcd);
- kfree(lcd2s->charlcd);
+ charlcd_free(lcd2s->charlcd);
return 0;
}