Code cleanups and a bug fix
- W=1 compiler warning cleanups
- Mutex initialization simplification
- Protect against NULL pointer exception during mount
ecryptfs: fix kernel panic with null dev_name

When mounting eCryptfs, a null "dev_name" argument to ecryptfs_mount()
causes a kernel panic if the parsed options are valid. The easiest way to
reproduce this is to call mount() from userspace with an existing
eCryptfs mount's options and a "source" argument of 0.

Error out if "dev_name" is null in ecryptfs_mount()

Fixes: 237fead61998 ("[PATCH] ecryptfs: fs/Makefile and fs/Kconfig")
Signed-off-by: Jeffrey Mitchell <>
Signed-off-by: Tyler Hicks <>
1 file changed