diff options
| -rw-r--r-- | flash_otp_write.c | 19 |
1 files changed, 18 insertions, 1 deletions
diff --git a/flash_otp_write.c b/flash_otp_write.c index 56769ec..3515eee 100644 --- a/flash_otp_write.c +++ b/flash_otp_write.c @@ -16,6 +16,23 @@ #include <common.h> #include <mtd/mtd-user.h> +ssize_t xread(int fd, void *buf, size_t count) +{ + ssize_t ret, done = 0; + +retry: + ret = read(fd, buf + done, count - done); + if (ret < 0) + return ret; + + done += ret; + + if (ret == 0 /* EOF */ || done == count) + return done; + else + goto retry; +} + int main(int argc,char *argv[]) { int fd, val, ret, size, wrote, len; @@ -67,7 +84,7 @@ int main(int argc,char *argv[]) len = 256; wrote = 0; - while ((size = read(0, buf, len))) { + while ((size = xread(0, buf, len))) { if (size < 0) { perror("read()"); return errno; |