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| author | Tomas Winkler <tomas.winkler@intel.com> | 2023-06-20 16:19:04 +0300 |
|---|---|---|
| committer | Miquel Raynal <miquel.raynal@bootlin.com> | 2023-07-12 13:30:08 +0200 |
| commit | 19bfa9ebebb5ec0695def57eb1d80de7e9cab369 (patch) | |
| tree | fa26bdecb34162685d5dfeee7ef9d442d7345f9c /include/linux/mtd | |
| parent | 06c2afb862f9da8dc5efa4b6076a0e48c3fbaaa5 (diff) | |
| download | linux-stable-19bfa9ebebb5ec0695def57eb1d80de7e9cab369.tar.gz linux-stable-19bfa9ebebb5ec0695def57eb1d80de7e9cab369.tar.bz2 linux-stable-19bfa9ebebb5ec0695def57eb1d80de7e9cab369.zip | |
mtd: use refcount to prevent corruption
When underlying device is removed mtd core will crash
in case user space is holding open handle.
Need to use proper refcounting so device is release
only when has no users.
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20230620131905.648089-2-alexander.usyskin@intel.com
Diffstat (limited to 'include/linux/mtd')
| -rw-r--r-- | include/linux/mtd/mtd.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/include/linux/mtd/mtd.h b/include/linux/mtd/mtd.h index 7c58c44662b8..914a9f974baa 100644 --- a/include/linux/mtd/mtd.h +++ b/include/linux/mtd/mtd.h @@ -379,7 +379,7 @@ struct mtd_info { struct module *owner; struct device dev; - int usecount; + struct kref refcnt; struct mtd_debug_info dbg; struct nvmem_device *nvmem; struct nvmem_device *otp_user_nvmem; |