Negative errno values are internal to the kernel so we need to get
rid of the negation before EAGAIN. Also, while we're here, handle EINTR
gracefully.
Signed-off-by: Matt Helsley <matthltc@xxxxxxxxxx>
---
ckptinfo.c | 4 +++-
1 files changed, 3 insertions(+), 1 deletions(-)
diff --git a/ckptinfo.c b/ckptinfo.c
index 23db9fb..eafc2a7 100644
--- a/ckptinfo.c
+++ b/ckptinfo.c
@@ -162,8 +162,10 @@ static int __image_read(int fd, void *buf, int len)
for (nleft = len; nleft; nleft -= nread) {
nread = read(fd, buf, nleft);
- if (nread < 0 && errno == -EAGAIN)
+ if (nread < 0 && ((errno == EAGAIN) || (errno == EINTR))) {
+ nread = 0;
continue;
+ }
if (nread <= 0)
break;
buf += nread;
--
1.6.3.3
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