target/linux/bcm27xx/patches-5.4/950-0391-driver-char-rpivid-Fix-access-to-freed-memory.patch

   1 From be492eed9f4724798a7b85cf8779772dc901f986 Mon Sep 17 00:00:00 2001
   2 From: Dave Stevenson <dave.stevenson@raspberrypi.com>
   3 Date: Tue, 21 Jan 2020 16:44:14 +0000
   4 Subject: [PATCH] driver: char: rpivid: Fix access to freed memory
   5
   6 The error path during probe frees the private memory block, and
   7 then promptly dereferences it to log an error message.
   8
   9 Use the base device instead of the pointer to it in the private
  10 structure.
  11
  12 Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
  13 ---
  14  drivers/char/broadcom/rpivid-mem.c | 2 +-
  15  1 file changed, 1 insertion(+), 1 deletion(-)
  16
  17 --- a/drivers/char/broadcom/rpivid-mem.c
  18 +++ b/drivers/char/broadcom/rpivid-mem.c
  19 @@ -229,7 +229,7 @@ failed_alloc_chrdev:
  20  failed_get_resource:
  21         kfree(priv);
  22  failed_inst_alloc:
  23 -       dev_err(priv->dev, "could not load rpivid_mem");
  24 +       dev_err(&pdev->dev, "could not load rpivid_mem");
  25         return err;
  26  }
  27