diff options
Diffstat (limited to 'arch/powerpc/lib/checksum_wrappers.c')
| -rw-r--r-- | arch/powerpc/lib/checksum_wrappers.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/powerpc/lib/checksum_wrappers.c b/arch/powerpc/lib/checksum_wrappers.c index a0cb63fb76a1..8d83c39be7e4 100644 --- a/arch/powerpc/lib/checksum_wrappers.c +++ b/arch/powerpc/lib/checksum_wrappers.c @@ -29,6 +29,7 @@ __wsum csum_and_copy_from_user(const void __user *src, void *dst, unsigned int csum; might_sleep(); + allow_read_from_user(src, len); *err_ptr = 0; @@ -60,6 +61,7 @@ __wsum csum_and_copy_from_user(const void __user *src, void *dst, } out: + prevent_read_from_user(src, len); return (__force __wsum)csum; } EXPORT_SYMBOL(csum_and_copy_from_user); @@ -70,6 +72,7 @@ __wsum csum_and_copy_to_user(const void *src, void __user *dst, int len, unsigned int csum; might_sleep(); + allow_write_to_user(dst, len); *err_ptr = 0; @@ -97,6 +100,7 @@ __wsum csum_and_copy_to_user(const void *src, void __user *dst, int len, } out: + prevent_write_to_user(dst, len); return (__force __wsum)csum; } EXPORT_SYMBOL(csum_and_copy_to_user); |