diff options
| author | Wenwen Wang <wang6495@umn.edu> | 2018-12-26 20:15:13 -0600 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-02-12 19:44:58 +0100 |
| commit | 69a1580320bf505ce51e06763e36b0596872d3d0 (patch) | |
| tree | 08095e230482d6ec4f6ecf9f8ef1acef02654965 /drivers | |
| parent | d5c411b55d2d2d0f8fd6608e380bf3f4cd6ee9a5 (diff) | |
gdrom: fix a memory leak bug
[ Upstream commit 093c48213ee37c3c3ff1cf5ac1aa2a9d8bc66017 ]
In probe_gdrom(), the buffer pointed by 'gd.cd_info' is allocated through
kzalloc() and is used to hold the information of the gdrom device. To
register and unregister the device, the pointer 'gd.cd_info' is passed to
the functions register_cdrom() and unregister_cdrom(), respectively.
However, this buffer is not freed after it is used, which can cause a
memory leak bug.
This patch simply frees the buffer 'gd.cd_info' in exit_gdrom() to fix the
above issue.
Signed-off-by: Wenwen Wang <wang6495@umn.edu>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/cdrom/gdrom.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/cdrom/gdrom.c b/drivers/cdrom/gdrom.c index e2808fefbb78..1852d19d0d7b 100644 --- a/drivers/cdrom/gdrom.c +++ b/drivers/cdrom/gdrom.c @@ -882,6 +882,7 @@ static void __exit exit_gdrom(void) platform_device_unregister(pd); platform_driver_unregister(&gdrom_driver); kfree(gd.toc); + kfree(gd.cd_info); } module_init(init_gdrom); |