correct locking in stdio functions that tried to be lock-free

[musl] / src / stdio / fwrite.c

diff --git a/src/stdio/fwrite.c b/src/stdio/fwrite.c
index 02908c4..8027b30 100644 (file)
--- a/src/stdio/fwrite.c
+++ b/src/stdio/fwrite.c
@@ -1,6 +1,6 @@
 #include "stdio_impl.h"
 
-size_t __fwritex(const unsigned char *s, size_t l, FILE *f)
+size_t __fwritex(const unsigned char *restrict s, size_t l, FILE *restrict f)
 {
        size_t i=0;
 
@@ -24,14 +24,14 @@ size_t __fwritex(const unsigned char *s, size_t l, FILE *f)
        return l+i;
 }
 
-size_t fwrite(const void *src, size_t size, size_t nmemb, FILE *f)
+size_t fwrite(const void *restrict src, size_t size, size_t nmemb, FILE *restrict f)
 {
        size_t k, l = size*nmemb;
        if (!l) return l;
        FLOCK(f);
        k = __fwritex(src, l, f);
        FUNLOCK(f);
-       return k==l ? nmemb : l/size;
+       return k==l ? nmemb : k/size;
 }
 
 weak_alias(fwrite, fwrite_unlocked);