commit 6a39888c2c4bcfbcdc61a1953911ad30c62da1ef
author Miss Islington (bot) <31488909+miss-islington@users.noreply.github.com> Wed Sep 16 05:25:09 2020 -0700
committer GitHub <noreply@github.com> Wed Sep 16 05:25:09 2020 -0700
tree 45023c7c105d86f9512b270225478acb2830a093
parent 7e356f17e4c91392b6fa45a512efc95923388813

bpo-41687: Fix error handling in Solaris sendfile implementation (GH-22128)


I just realized that my recent PR with sendfile on Solaris ([PR 22040](https://github.com/python/cpython/pull/22040)) has broken error handling.

Sorry for that, this simple followup fixes that.

Automerge-Triggered-By: @1st1
(cherry picked from commit fa8c9e70104b0aef966a518eb3a80a4881906ae0)

Co-authored-by: Jakub Kulík <Kulikjak@gmail.com>

Modules/posixmodule.c

diff --git a/Modules/posixmodule.c b/Modules/posixmodule.c
index 39f5f57..01e8bcb 100644
--- a/Modules/posixmodule.c
+++ b/Modules/posixmodule.c
@@ -9456,14 +9456,13 @@
 #if defined(__sun) && defined(__SVR4)
     // On Solaris, sendfile raises EINVAL rather than returning 0
     // when the offset is equal or bigger than the in_fd size.
-    int res;
     struct stat st;
 
     do {
         Py_BEGIN_ALLOW_THREADS
-        res = fstat(in_fd, &st);
+        ret = fstat(in_fd, &st);
         Py_END_ALLOW_THREADS
-    } while (res != 0 && errno == EINTR && !(async_err = PyErr_CheckSignals()));
+    } while (ret != 0 && errno == EINTR && !(async_err = PyErr_CheckSignals()));
     if (ret < 0)
         return (!async_err) ? posix_error() : NULL;