[Asterisk-code-review] utils: Don't set or clear flags that don't need setting or c... (asterisk[13])

[Sean Bright]

Sean Bright has uploaded this change for review. ( https://gerrit.asterisk.org/10793


Change subject: utils: Don't set or clear flags that don't need setting or clearing
......................................................................

utils: Don't set or clear flags that don't need setting or clearing

Change-Id: I0e7fb507ac09b15e45e1ff8501ecfca67afa5217
---
M main/utils.c
1 file changed, 8 insertions(+), 0 deletions(-)



  git pull ssh://gerrit.asterisk.org:29418/asterisk refs/changes/93/10793/1

diff --git a/main/utils.c b/main/utils.c
index c82ecb9..3d3750b 100644
--- a/main/utils.c
+++ b/main/utils.c
@@ -2813,9 +2813,17 @@
 
 	switch (op) {
 	case AST_FD_FLAG_SET:
+		if ((f & flags) == flags) {
+			/* There is nothing to set */
+			return 0;
+		}
 		f |= flags;
 		break;
 	case AST_FD_FLAG_CLEAR:
+		if (!(f & flags)) {
+			/* There is nothing to clear */
+			return 0;
+		}
 		f &= ~flags;
 		break;
 	default:

-- 
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Gerrit-Project: asterisk
Gerrit-Branch: 13
Gerrit-MessageType: newchange
Gerrit-Change-Id: I0e7fb507ac09b15e45e1ff8501ecfca67afa5217
Gerrit-Change-Number: 10793
Gerrit-PatchSet: 1
Gerrit-Owner: Sean Bright <sean.bright at gmail.com>
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