diff options
| author | Rusty Russell <rusty@rustcorp.com.au> | 2010-08-11 23:04:17 -0600 |
|---|---|---|
| committer | Rusty Russell <rusty@rustcorp.com.au> | 2010-08-11 23:04:18 +0930 |
| commit | e6df34a4429b77fdffb6e05adf263468a3dcda33 (patch) | |
| tree | 0858a2cd08fffad89c05ab4a0d14ae832777f42b /include | |
| parent | 6a841528d288ac420052f5c98fd426b0fcdc5b52 (diff) | |
param: add a free hook to kernel_param_ops.
This allows us to generalize the KPARAM_KMALLOCED flag, by calling a function
on every parameter when a module is unloaded.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Reviewed-by: Takashi Iwai <tiwai@suse.de>
Tested-by: Phil Carmody <ext-phil.2.carmody@nokia.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/moduleparam.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/moduleparam.h b/include/linux/moduleparam.h index 02e5090ce32..9f51568f51c 100644 --- a/include/linux/moduleparam.h +++ b/include/linux/moduleparam.h @@ -36,6 +36,8 @@ struct kernel_param_ops { int (*set)(const char *val, const struct kernel_param *kp); /* Returns length written or -errno. Buffer is 4k (ie. be short!) */ int (*get)(char *buffer, const struct kernel_param *kp); + /* Optional function to free kp->arg when module unloaded. */ + void (*free)(void *arg); }; /* Flag bits for kernel_param.flags */ |