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authorLars-Peter Clausen <lars@metafoo.de>2012-10-22 16:09:04 +0200
committerBob Liu <lliubbo@gmail.com>2012-12-13 13:50:57 +0800
commit10dc42b5b262f3bb2e4532759e4e1147ebf6a22f (patch)
treed2695d50b1aeb12e4cd08de708197630701e1b26 /arch/blackfin
parentaff06631da3c8349149fe4214091735b35294151 (diff)
downloadop-kernel-dev-10dc42b5b262f3bb2e4532759e4e1147ebf6a22f.zip
op-kernel-dev-10dc42b5b262f3bb2e4532759e4e1147ebf6a22f.tar.gz
Blackfin: Annotate clear_user 'to' parameter with __user
The 'to' parameter of clear_user is supposed to take a userspace pointer, so annotate it with __user. This fixes the following and similar sparse warnings: fs/binfmt_elf_fdpic.c:714:35: warning: incorrect type in argument 1 (different address spaces) fs/binfmt_elf_fdpic.c:714:35: expected void [noderef] <asn:1>*to fs/binfmt_elf_fdpic.c:714:35: got void *<noident> fs/binfmt_elf_fdpic.c:1119:29: warning: incorrect type in argument 1 (different address spaces) fs/binfmt_elf_fdpic.c:1119:29: expected void *to fs/binfmt_elf_fdpic.c:1119:29: got void [noderef] <asn:1>*<noident> Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Bob Liu <lliubbo@gmail.com>
Diffstat (limited to 'arch/blackfin')
-rw-r--r--arch/blackfin/include/asm/uaccess.h4
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/blackfin/include/asm/uaccess.h b/arch/blackfin/include/asm/uaccess.h
index 90f32c2..ded2d05 100644
--- a/arch/blackfin/include/asm/uaccess.h
+++ b/arch/blackfin/include/asm/uaccess.h
@@ -256,11 +256,11 @@ static inline long __must_check strlen_user(const char *src)
*/
static inline unsigned long __must_check
-__clear_user(void *to, unsigned long n)
+__clear_user(void __user *to, unsigned long n)
{
if (!access_ok(VERIFY_WRITE, to, n))
return n;
- memset(to, 0, n);
+ memset((void __force *)to, 0, n);
return 0;
}
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