Commit cadffe60 authored by Oleg Drokin's avatar Oleg Drokin Committed by Greg Kroah-Hartman
Browse files

staging/lustre: Declare lprocfs_write_frac_u64_helper argument as __user 



The buffer that lprocfs_write_frac_u64_helper is working on is
presumed to be a userspace one, so it's not suitable for use
on kernel buffers.

Signed-off-by: default avatarOleg Drokin <green@linuxhacker.ru>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent f2938c04

drivers/staging/lustre/lustre/include/lprocfs_status.h

+1 −1
Original line number Diff line number Diff line
@@ -608,7 +608,7 @@ int lprocfs_write_helper(const char __user *buffer, unsigned long count, 
			 int *val);

int lprocfs_write_u64_helper(const char __user *buffer,

			     unsigned long count, __u64 *val);

int lprocfs_write_frac_u64_helper(const char *buffer,

int lprocfs_write_frac_u64_helper(const char __user *buffer,

				  unsigned long count,

				  __u64 *val, int mult);

char *lprocfs_find_named_value(const char *buffer, const char *name,

drivers/staging/lustre/lustre/obdclass/lprocfs_status.c

+2 −2
Original line number Diff line number Diff line
@@ -1319,8 +1319,8 @@ int lprocfs_write_u64_helper(const char __user *buffer, unsigned long count, 
}

EXPORT_SYMBOL(lprocfs_write_u64_helper);



int lprocfs_write_frac_u64_helper(const char *buffer, unsigned long count,

			      __u64 *val, int mult)

int lprocfs_write_frac_u64_helper(const char __user *buffer,

				  unsigned long count, __u64 *val, int mult)

{

	char kernbuf[22], *end, *pbuf;

	__u64 whole, frac = 0, units;