param: simple locking for sysfs-writable charp parameters

Since the writing to sysfs can free the old one, we need to block that
when we access the charp variables.

Signed-off-by: Rusty Russell <[email protected]>
Reviewed-by: Takashi Iwai <[email protected]>
Tested-by: Phil Carmody <[email protected]>
Cc: Jeff Dike <[email protected]>
Cc: Dan Williams <[email protected]>
Cc: John W. Linville <[email protected]>
Cc: Jing Huang <[email protected]>
Cc: James E.J. Bottomley <[email protected]>
Cc: Greg Kroah-Hartman <[email protected]>
Cc: Johannes Berg <[email protected]>
Cc: David S. Miller <[email protected]>
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]

0 files changed, 0 insertions, 0 deletions