Re: [PATCH u-boot-marvell 11/14] tools: kwboot: Handle EINTR in kwboot_write()

On 1/25/22 18:13, Marek Behún wrote:

From: Pali Rohár pali@kernel.org

The write() syscall may be interrupted. Handle EINTR and retry it.

Signed-off-by: Pali Rohár pali@kernel.org Signed-off-by: Marek Behún marek.behun@nic.cz

Reviewed-by: Stefan Roese sr@denx.de

Thanks, Stefan

---

tools/kwboot.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/tools/kwboot.c b/tools/kwboot.c index de433c1b04..8b748f0fdd 100644 --- a/tools/kwboot.c +++ b/tools/kwboot.c @@ -292,13 +292,15 @@ static int blk_rsp_timeo = KWBOOT_BLK_RSP_TIMEO; static ssize_t kwboot_write(int fd, const char *buf, size_t len) {

• size_t tot = 0;

• ssize_t tot = 0;

  while (tot < len) { ssize_t wr = write(fd, buf + tot, len - tot);

• if (wr < 0)
  

• 	return -1;
  

• if (wr < 0 && errno == EINTR)
  

• 	continue;
  

• else if (wr < 0)
  

• 	return wr;
  
  

  tot += wr; }

Viele Grüße, Stefan Roese