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| author | Zhouyi Zhou <zhouzhouyi@gmail.com> | 2022-02-10 09:58:24 +0300 |
|---|---|---|
| committer | Helge Deller <deller@gmx.de> | 2022-04-14 23:01:24 +0300 |
| commit | d6cd978f7e6b6f6895f8d0c4ce6e5d2c8e979afe (patch) | |
| tree | ab3dfced4ae3a181d6f97fbc9c80896b9bfbe790 | |
| parent | 16a54d4ee7c8aa1c4b59a91bea24799f48bcc5b5 (diff) | |
| download | linux-d6cd978f7e6b6f6895f8d0c4ce6e5d2c8e979afe.tar.xz | |
video: fbdev: fbmem: fix pointer reference to null device field
In function do_remove_conflicting_framebuffers, if device is NULL, there
will be null pointer reference. The patch add a check to the if expression.
Signed-off-by: Zhouyi Zhou <zhouzhouyi@gmail.com>
Acked-by: Paul Menzel <pmenzel@molgen.mpg.de>
Signed-off-by: Helge Deller <deller@gmx.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20220210065824.368355-1-zhouzhouyi@gmail.com
| -rw-r--r-- | drivers/video/fbdev/core/fbmem.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/video/fbdev/core/fbmem.c b/drivers/video/fbdev/core/fbmem.c index bdd00d381bbc..1cfb2bd090b6 100644 --- a/drivers/video/fbdev/core/fbmem.c +++ b/drivers/video/fbdev/core/fbmem.c @@ -1579,7 +1579,7 @@ static void do_remove_conflicting_framebuffers(struct apertures_struct *a, * If it's not a platform device, at least print a warning. A * fix would add code to remove the device from the system. */ - if (dev_is_platform(device)) { + if (device && dev_is_platform(device)) { registered_fb[i]->forced_out = true; platform_device_unregister(to_platform_device(device)); } else { |