static int ffs_mutex_lock(struct mutex *mutex, unsigned nonblock)
__attribute__((warn_unused_result, nonnull));
-static char *ffs_prepare_buffer(const char * __user buf, size_t len)
+static char *ffs_prepare_buffer(const char __user *buf, size_t len)
__attribute__((warn_unused_result, nonnull));
: mutex_lock_interruptible(mutex);
}
-static char *ffs_prepare_buffer(const char * __user buf, size_t len)
+static char *ffs_prepare_buffer(const char __user *buf, size_t len)
{
char *data;