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Diffstat (limited to 'fs/stat.c')
-rw-r--r--fs/stat.c12
1 files changed, 10 insertions, 2 deletions
diff --git a/fs/stat.c b/fs/stat.c
index 2b5d55eb9d9a..b30ac60291e2 100644
--- a/fs/stat.c
+++ b/fs/stat.c
@@ -199,6 +199,10 @@ SYSCALL_DEFINE2(fstat, unsigned int, fd, struct __old_kernel_stat __user *, stat
#define valid_dev(x) choose_32_64(old_valid_dev,new_valid_dev)(x)
#define encode_dev(x) choose_32_64(old_encode_dev,new_encode_dev)(x)
+#ifndef INIT_STRUCT_STAT_PADDING
+# define INIT_STRUCT_STAT_PADDING(st) memset(&st, 0, sizeof(st))
+#endif
+
static int cp_new_stat(struct kstat *stat, struct stat __user *statbuf)
{
struct stat tmp;
@@ -210,7 +214,7 @@ static int cp_new_stat(struct kstat *stat, struct stat __user *statbuf)
return -EOVERFLOW;
#endif
- memset(&tmp, 0, sizeof(tmp));
+ INIT_STRUCT_STAT_PADDING(tmp);
tmp.st_dev = encode_dev(stat->dev);
tmp.st_ino = stat->ino;
if (sizeof(tmp.st_ino) < sizeof(stat->ino) && tmp.st_ino != stat->ino)
@@ -323,11 +327,15 @@ SYSCALL_DEFINE3(readlink, const char __user *, path, char __user *, buf,
/* ---------- LFS-64 ----------- */
#ifdef __ARCH_WANT_STAT64
+#ifndef INIT_STRUCT_STAT64_PADDING
+# define INIT_STRUCT_STAT64_PADDING(st) memset(&st, 0, sizeof(st))
+#endif
+
static long cp_new_stat64(struct kstat *stat, struct stat64 __user *statbuf)
{
struct stat64 tmp;
- memset(&tmp, 0, sizeof(struct stat64));
+ INIT_STRUCT_STAT64_PADDING(tmp);
#ifdef CONFIG_MIPS
/* mips has weird padding, so we don't get 64 bits there */
if (!new_valid_dev(stat->dev) || !new_valid_dev(stat->rdev))