Ensure read_long() reads the correct number of bytes from the index

diff --git a/libkmod/libkmod-index.c b/libkmod/libkmod-index.c
index 2136a96..0c49868 100644 (file)
--- a/libkmod/libkmod-index.c
+++ b/libkmod/libkmod-index.c
@@ -126,7 +126,7 @@ static uint32_t read_long(FILE *in)
        uint32_t l;
 
        errno = 0;
-       if (fread(&l, sizeof(uint32_t), 1, in) <= 0)
+       if (fread(&l, sizeof(uint32_t), 1, in) != sizeof(uint32_t))
                read_error();
        return ntohl(l);
 }